Olympic clear waterguard wood sealer reviews

Brush or roll the paint in the direction of the wood grain. Olympic WaterGuard 1 gal. 30. Clear & Waterproofing Sealers . . Model Number: TH.021805-20 Menards SKU: 5530961.. homes6. Anchorseal 2 Green Wood Sealer – Ideal Against End Grain Checking. How Anchorseal works; 7. SEAL-ONCE NANO+POLY Penetrating Wood Sealer – Long-Lasting …Specs ; Resists cracking · Capability to expand and contract with the siding or decking without cracking. No ; Resists color change · Capability to resisit fading ... genuine buddy scooter for sale near me WaterGuard Transparent Wood Stain with Sealer offers convenience and value. A durable acrylic oil stain that provides protection and a slight hint of color that highlights the wood grain. This penetrating, advanced multi-surface sealant protects against water damage and creates a mildew-resistant coating. Perfect for almost any outdoor wood ... craigslist for medford oregon Jan 9, 2023 · Olympic Maximum Wood Stain And Sealer For Decks, Fences, Siding, and Other Outdoor Wood Structures, Solid, Spiced Red, 1 Gallon Features : Weather-ready application allows you to clean and stain on the same day in temperatures down to 35 degrees fahrenheight, deck is ready for rain in 12 hours cadillac cts won't start anti theft Find helpful customer reviews and review ratings for Olympic Maximum Wood Stain And Sealer For Decks, Fences, Siding, and Other Outdoor Wood Structures, Transparent, Honey Gold, 1 Gallon at Amazon.com. Read honest and unbiased product reviews from our users. WaterGuard Multi-Surface Waterproofing Clear Sealer offers convenience and value. This penetrating, multi-surface sealant protects against water damage and ...Find helpful customer reviews and review ratings for Olympic Stain Waterguard Waterproofing Sealant for Wood, Concrete, Brick, Clear, 1-Gallon at Amazon.com. Read honest and … how much cash can you withdraw from an atm chaseOlympic Waterguard 55260XI Olympic WaterguardClear Wood Sealer GENERAL SURFACE PREPARATION Proper surface preparation is essential for the Olympiclimited warranty to apply. Surface must be dry and clean. Remove all dust, dirt, mildew, oil, loose wood fibers, and other contaminants. Previous coatings must be completely removed. Overall Score Olympic Maximum Stain + Sealant in One at 2 Year Period: 7.0 – The Olympic Elite Advanced Stain + Sealant was above average score overall. The stain did hold up fairly well except in high traffic areas and no mildew was present. We were not overly happy with the coverage rates and having to strip the stain off prior to recoating. paqui scoville level 2 days ago · Wood stain Ratings. Enhance the beauty of decks, fences, and outdoor furniture with the best wood stain. A quality wood stain adds a premium finish that lasts for years. View our ratings and ... Amazon.com: Olympic Waterguard Clear Wood Sealer 45 results for "olympic waterguard clear wood sealer" RESULTS Price and other details may vary based on product size and color. Amazon's Choice Olympic Stain Smartguard Concentrated Multi-Surface Sealant, Clear, 15oz 4.3 (268) $1799 $22.98 FREE delivery Fri, Jan 13 on $25 of items shipped by Amazon Olympic® WaterGuard® Transparent Wood Stain with Sealer offers convenience and value. A durable, acrylic oil stain that provides protection, a slight hint of color, and highlights the wood grain. This penetrating, advanced multi-surface sealant protects against water damage and creates a mildew-resistant coating.OLYMPIC®WATERGUARD®Exterior Clear Wood Sealer WaterGuard for Wood Waterproofing Clear Sealer offers convenience and value. This penetrating clear sealer protects the wood from mildew stains and sun damage, while allowing it to weather and gray naturally. Perfect for almost any outdoor wood surface. Ready to use clear wood sealer Tune in for a brief 1-year later review of Olympic Water Guard Wood Stain and Sealer! We applied this semi-transparent Woodland Cedar colored product to our...OLYMPIC®WATERGUARD®Exterior Clear Wood Sealer WaterGuard for Wood Waterproofing Clear Sealer offers convenience and value. This penetrating clear sealer protects the wood from mildew stains and sun damage, while allowing it to weather and gray naturally. Perfect for almost any outdoor wood surface. Ready to use clear wood sealer does california dmv take walk ins The Olympic WaterGuard for Wood is part of the Wood stains test program at Consumer Reports. In our lab tests, Wood stains models like the WaterGuard for Wood are rated on multiple criteria, such ...Brush or roll the paint in the direction of the wood grain. Olympic WaterGuard 1 gal. 30. Clear & Waterproofing Sealers . . Model Number: TH.021805-20 Menards SKU: 5530961.. homesGood review of the different sealers - i am a technical rep for wood finishes and just wanted to add that there is one major difference between water based and oil based wood finishes - water based finishes dry to a porous coating(moisture vapor will still move in and out of the wood, slowly from humidity) - while oil based finishes seal the water vapor out(humidity will only move through uncoated areas of the wood). cow print nails short It dries down to a clear, invisible finish that does not change the surface texture or color. Ideal for use on uncoated/unpainted, vertical/horizontal, interior/exterior surfaces such as: concrete, brick, pavers, wood, porous natural and artificial stone, masonry, unglazed/unpainted porous tile, and color integrated or unpainted stucco.Durable - Strong durability and waterproofing protection makes Olympic Smart Guard the smart choice for any homeowner who wants to seal their wood or composite deck quickly and still enjoy the outdoors.Multi-Surface Use - While many deck sealants only work on wood, Olympic Smart Guard works as a sealant on Wood Decks, Concrete Patios, Masonry ... cascadilla hall ithaca ny WaterGuard Multi-Surface Waterproofing Clear Sealer offers convenience and value. This penetrating, multi-surface sealant protects against water damage and creates a mildew-resistant coating. Perfect for a variety of substrates including concrete, brick, stucco and wood. Customer Reviews for Olympic Waterguard 5 gal. Clear Wood Sealer. Internet # 305542043Model # 55260XI-05 ... out of 594 reviews. 74 % recommend this product; 5 376.[This review was collected as part of a promotion.] Applied Olympic WaterGuard for wood Waterproofing Sealant Clear to my 10 year old fence after I pressure washed it. It really brings out the beauty of the wood. I included a before and after picture of the results. I expect to repeat the process every two years. But it isn't all that bad. pnc lawn seating chart WaterGuard Transparent Wood Stain with Sealer offers convenience and value. A durable acrylic oil stain that provides protection and a slight hint of color that highlights the wood grain. This penetrating, advanced multi-surface sealant protects against water damage and creates a mildew-resistant coating. Test a small area to ensure acceptable appearance and penetration. Apply one thin coat with a high-quality brush, roller or paint pad or by spray equipment. When spraying or rolling, always back brush for best results. Can be applied down to 10°C (50°F) for <550 g/L VOC version and 2°C (35°F) for <250 g/L and <100 g/L VOC versions. reclaimed wood dresser and nightstand Not available Buy Olympic Waterguard Wood Sealer, Clear, 1 Gallon at Walmart.comWaterGuard Transparent Wood Stain with Sealer offers convenience and value. A durable acrylic oil stain that provides protection and a slight hint of color that highlights the wood grain. This penetrating, advanced multi-surface sealant protects against water damage and creates a mildew-resistant coating. Find helpful customer reviews and review ratings for Olympic Stain Smartguard Concentrated Multi-Surface Sealant, Clear, 15oz at Amazon.com. Read honest and unbiased product reviews from our users. Brand. MasonryDefender. Prime. MASONRY SEALER - Works as Both an Interior Brick Sealer & Exterior Brick Sealer for All Masonry Walls. CREATES AN ATTRACTIVE CLEAR, SATIN SHEEN - Doesn't Change the Color of the Brick - Apply Multiple Coats for a Slightly Higher Sheen more. 5. farm plastic supply clear greenhouse plastic sheeting 6 mil BuildEazy.com may earn a commission if you purchase a product through one of our links. #1 SEAL-ONCE MARINE Penetrating Wood Sealer. Editor choice. ★★★★★. Check Price. #2 Eco Advance EAWOD16CON Water Repellent Liquid Concentrate. ★★★★★. Check Price. #3 Olympic Stain Smartguard Concentrated Multi-Surface Sealant.2 days ago · Wood stain Ratings. Enhance the beauty of decks, fences, and outdoor furniture with the best wood stain. A quality wood stain adds a premium finish that lasts for years. View our ratings and ... toyota levittown pa WaterGuard Multi-Surface Waterproofing Clear Sealer offers convenience and value. This penetrating, multi-surface sealant protects against water damage and creates a mildew …Tune in for a brief 1-year later review of Olympic Water Guard Wood Stain and Sealer! We applied this semi-transparent Woodland Cedar colored product to our...2.1K views 7 months ago Tune in for a brief 1-year later review of Olympic Water Guard Wood Stain and Sealer! We applied this semi-transparent Woodland Cedar colored product to our... sam's club gas prices bradenton fl Shorter lifespan. 3. Rain Guard Water SP-8002 Wood Sealer – Premium Choice. Check Latest Price. The Rain Guard Water SP-8002 Wood Sealer covers a lot of bases to keep your deck and lawn furniture looking their best for years. The product is a concentrate, which makes it a little messier to use.OLYMPIC WATERGUARD Semi-Transparent Wood Stain + Sealer has been specially designed to provide complete outdoor protection for your wood. A rich colour allows the natural wood …WaterGuard Transparent Wood Stain with Sealer offers convenience and value. A durable acrylic oil stain that provides protection and a slight hint of color that highlights the wood grain. This penetrating, advanced multi-surface sealant protects against water damage and creates a mildew-resistant coating. Table of Contents [ hide] Outdoor Wood Sealer Reviews. The Top 6 Best Outdoor Wood Sealers for 2022 are: Minwax Helmsman Spar Urethane. Tall Earth Eco-Safe Wood Treatment. Thompson’s WaterSeal Natural Wood Protector. Star Brite Golden Teak Oil Sealer. Ready Seal Exterior Wood Stain and Sealer. SaverSystems Wood Stain. shabbat times miami I like the waterproof sealer because it doesn't actually change the color of the wood it just sheds off the water. I also find this works better than paint or ...Rainguard Wood Sealer is the ideal weatherproof sealant for all non-treated and unpainted wood surfaces including, wooden floors, decks, walkways, outdoor furniture, and fences. PREMIXED FORMULATION: Ready to use right out of the pail! Rainguard Water Sealers Wood Sealer is premixed for easy and convenient application.I waited a few weeks to review the Olympic Waterguard product because we had 33 days of no rain where I reside in Ohio. I wanted to be able to give an accurate review. First of all, the product is easy to apply. We used a paint brush when we applied to our newly stained fence and it went on smoothly and evenly. mario the man vs mario the idea essay Sep 28, 2022 · Olympic Maximum Clear Wood Protector - Honorable Mention Olympic is another oil-based product, which soaks into the wood much like Thompson’s does. Although they offer tinted versions,... WaterGuard. ®. for Wood Waterproofing Sealant Clear. OLYMPIC WATERGUARD ® for Wood Clear waterproofing finish protects wood while allowing it to weather and gray naturally. Water …The Olympic WaterGuard for Wood is part of the Wood stains test program at Consumer Reports. In our lab tests, Wood stains models like the WaterGuard for Wood are rated on multiple criteria, such ... good index funds to invest in reddit OLYMPIC® MAXIMUM Stain Rating (1-10) Appearance After Initial Stain Application: 7 – The Olympic Maximum in the Cedar Naturaltone is a mix of golden caramel tones. The grain of the treated pine deck had a nice overall color. The knots of the wood were a little light but that can be normal for a deep penetrating oil-based stain. costco engineered hardwood flooring Tune in for a brief 1-year later review of Olympic Water Guard Wood Stain and Sealer! We applied this semi-transparent Woodland Cedar colored product to our...Brush or roll the paint in the direction of the wood grain. Olympic WaterGuard 1 gal. 30. Clear & Waterproofing Sealers . . Model Number: TH.021805-20 Menards SKU: 5530961.. homes Write a review. Olympic Maximum Waterproofing ... "Olympic Maximum" clear sealant provides superior protection for wood. Its unique formula penetrates deep, ...Description. Olympic WaterGuard Clear Wood Sealer was specifically. developed to provide four-way protection while allowing wood. to weather and grey naturally. Use on properly prepared exterior wood decks, fences, siding, railings, garden outdoor furniture, and other wood surfaces. May be used on new wood, pressure-treated wood, the carry guys movers [This review was collected as part of a promotion.] Applied Olympic WaterGuard for wood Waterproofing Sealant Clear to my 10 year old fence after I pressure washed it. It really brings out the beauty of the wood. I included a before and after picture of the results. I expect to repeat the process every two years. But it isn't all that bad. The Olympic Wood Protector Waterproofing Sealant is part of the Wood stains test program at Consumer Reports. In our lab tests, Wood stains models like the Wood Protector Waterproofing...Goes on "dark and milky"...don't freak...it drys nice and transparent. Tolerates a two-coat application reasonably well...don't think I'd try 3 coats though.For best results, wait a minimum of 3 days before applying a solvent based coating over WATERGUARD. Waterproofing Clear Sealant for Wood. Allow 60 days before ... idle breakout bosses Shorter lifespan. 3. Rain Guard Water SP-8002 Wood Sealer – Premium Choice. Check Latest Price. The Rain Guard Water SP-8002 Wood Sealer covers a lot of bases to keep your deck and lawn furniture looking their best for years. The product is a concentrate, which makes it a little messier to use. ashtabula county court schedule Shop for Olympische 1 gal Waterguard Duidelijke Multi Surf Waterdichting Sealant online at an affordable price in Ubuy Netherlands. Get special offers, deals, discounts & fast delivery options on international shipping with every purchase on Ubuy. 1238581706 Olympic Waterguard 55260XI Olympic WaterguardClear Wood Sealer GENERAL SURFACE PREPARATION Proper surface preparation is essential for the Olympiclimited warranty to apply. Surface must be dry and clean. Remove all dust, dirt, mildew, oil, loose wood fibers, and other contaminants. Previous coatings must be completely removed. Exterior Wood Sealers Customer Reviews for Olympic Waterguard 5 gal. Clear Wood Sealer Internet # 305542043 Model # 55260XI-05 Store SKU # 1003317183 +3 Hover Image to Zoom Waterguard 5 gal. Clear Wood Sealer by Olympic (564) Clear, ready to use fomula Provides Waterproofing Protection Good for decks and other outdoor wood projects printacalendar.com 2022 Jan 10, 2023 · The Defy Crystal Clear sealer has an exceptional long-lasting reputation for deterring black stains that develop as a result of natural cedar‘s contact with water. Seal-ONCE Marine Premium Wood Sealer – Waterproof Sealant – Wood Stain and Sealer in One – 1 Gallon. Clear Seal-once is one of the best cedar sealers on the market. Olympic Waterguard 55260XI Olympic WaterguardClear Wood Sealer GENERAL SURFACE PREPARATION Proper surface preparation is essential for the Olympiclimited warranty to apply. Surface must be dry and clean. Remove all dust, dirt, mildew, oil, loose wood fibers, and other contaminants. Previous coatings must be completely removed. Jan 10, 2023 · The Defy Crystal Clear sealer has an exceptional long-lasting reputation for deterring black stains that develop as a result of natural cedar‘s contact with water. Seal-ONCE Marine Premium Wood Sealer – Waterproof Sealant – Wood Stain and Sealer in One – 1 Gallon. Clear Seal-once is one of the best cedar sealers on the market. pollen count oklahomaBrush or roll the paint in the direction of the wood grain. Olympic WaterGuard 1 gal. 30. Clear & Waterproofing Sealers . . Model Number: TH.021805-20 Menards SKU: 5530961.. homesJan 9, 2023 · Olympic Maximum Wood Stain And Sealer For Decks, Fences, Siding, and Other Outdoor Wood Structures, Solid, Spiced Red, 1 Gallon Features : Weather-ready application allows you to clean and stain on the same day in temperatures down to 35 degrees fahrenheight, deck is ready for rain in 12 hours osrs kalphite task OLYMPIC WATERGUARD ® Clear waterproofing finish provides protection on multiple surfaces and allows your wood to weather and gray naturally. Water Proofing Protection: Fade Protection: Durability: Colours: Clear Uses: Use on Brick, Concrete, Stucco, Wood and More Find Your Colour Find a Retailer Details Warranty Satisfaction Guaranteed CoverageFind helpful customer reviews and review ratings for Olympic Maximum Wood Stain And Sealer For Decks, Fences, Siding, and Other Outdoor Wood Structures, Transparent, Honey Gold, 1 Gallon at Amazon.com. Read honest and unbiased product reviews from our users. Amazon.com: Olympic Waterguard Clear Wood Sealer 45 results for "olympic waterguard clear wood sealer" RESULTS Price and other details may vary based on product size and color. Amazon's Choice Olympic Stain Smartguard Concentrated Multi-Surface Sealant, Clear, 15oz 4.3 (268) $1799 $22.98 FREE delivery Fri, Jan 13 on $25 of items shipped by Amazon raymour and flanigan sleep center 2 days ago · Wood stain Ratings. Enhance the beauty of decks, fences, and outdoor furniture with the best wood stain. A quality wood stain adds a premium finish that lasts for years. View our ratings and ... [This review was collected as part of a promotion.] Olympic WaterGuard® for Wood Waterproofing Sealant Clear is a good wood protector and sealer that can be applied with a brush, roller, or sprayed on. I choose long handle and rolled mine on our fence. The sealer is a milky white color when applied but dried clears up after it dries.. flex rent payment reviews Sanding Sealer Wood Paint Sealant and Adhesives ... Be the first to review “Angle Valve ... Clear Hose: Light (1/8″-1/2″) – S-LonShop Olympic Stain Waterguard Waterproofing Sealant for Wood, Concrete, Brick, Clear, 1-Gallon online at best prices at desertcart - the best international shopping platform in OMAN. …This penetrating clear sealer protects the wood from mildew stains and sun damage, while allowing it to weather and gray naturally. Perfect for almost any outdoor wood surface. Ready to use clear wood sealer; Perfect for new wood, pressure-treated wood, weathered wood, and wood with a weathered clear or semi-transparent stainDescription. Olympic WaterGuard Clear Wood Sealer was specifically. developed to provide four-way protection while allowing wood. to weather and grey naturally. Use on properly prepared exterior wood decks, fences, siding, railings, garden outdoor furniture, and other wood surfaces. May be used on new wood, pressure-treated wood, otr trucking jobs in florida Good review of the different sealers - i am a technical rep for wood finishes and just wanted to add that there is one major difference between water based and oil based wood finishes - water based finishes dry to a porous coating(moisture vapor will still move in and out of the wood, slowly from humidity) - while oil based finishes seal the water vapor out(humidity will only move through uncoated areas of the wood).Brush or roll the paint in the direction of the wood grain. Olympic WaterGuard 1 gal. 30. Clear & Waterproofing Sealers . . Model Number: TH.021805-20 Menards SKU: 5530961.. homes usedtrucksnc Customer Reviews for Olympic Waterguard 5 gal. Clear Wood Sealer. Internet # 305542043Model # 55260XI-05 ... out of 594 reviews. 74 % recommend this product; 5 376.Clear-Crystal Clear. Dry Time ... Select a row below to filter reviews. 5☆ stars ... Use as a concrete waterproofer, brick sealer and wood sealer. Clear ... concrete grinder lowes Shop for Olympische 1 gal Waterguard Duidelijke Multi Surf Waterdichting Sealant online at an affordable price in Ubuy Netherlands. Get special offers, deals, discounts & fast delivery options on international shipping with every purchase on Ubuy. 1238581706WORD OF THE DAY. ca. qx; jb; xrWORD OF THE DAY. ca. qx; jb; xrIn Utah, we have the most Extreme Weather/seasons, from the desert reaching over 100 to the winter months as low as 5 degrees not to forget the freezing snow... cheap gas vancouver wa May 19, 2020 - WaterGuard Transparent Wood Stain with Sealer offers convenience and value. A durable acrylic oil stain that provides protection and a slight ...The Olympic WaterGuard for Wood is part of the Wood stains test program at Consumer Reports. In our lab tests, Wood stains models like the WaterGuard for Wood are rated on multiple... power outage panama city fl Brush or roll the paint in the direction of the wood grain. Olympic WaterGuard 1 gal. 30. Clear & Waterproofing Sealers . . Model Number: TH.021805-20 Menards SKU: 5530961.. homesThe Olympic WaterGuard for Wood is part of the Wood stains test program at Consumer Reports. In our lab tests, Wood stains models like the WaterGuard for Wood are rated on multiple... Thompson’s Water Seal is a water-based deck stain that protects the decking boards from water, moisture, mold, and UV damage. The manufacturer recommends applying …[This review was collected as part of a promotion.] Applied Olympic WaterGuard for wood Waterproofing Sealant Clear to my 10 year old fence after I pressure washed it. It really brings out the beauty of the wood. I included a before and after picture of the results. I expect to repeat the process every two years. But it isn't all that bad.Shorter lifespan. 3. Rain Guard Water SP-8002 Wood Sealer – Premium Choice. Check Latest Price. The Rain Guard Water SP-8002 Wood Sealer covers a lot of bases to keep your deck and lawn furniture looking their best for years. The product is a concentrate, which makes it a little messier to use. mothballs dollar general Olympic Waterguard 55260XI Olympic WaterguardClear Wood Sealer GENERAL SURFACE PREPARATION Proper surface preparation is essential for the Olympiclimited warranty to apply. Surface must be dry and clean. Remove all dust, dirt, mildew, oil, loose wood fibers, and other contaminants. Previous coatings must be completely removed. WaterGuard Multi-Surface Waterproofing Clear Sealer offers convenience and value. This penetrating, multi-surface sealant protects against water damage and creates a mildew-resistant coating. Perfect for a variety of substrates including concrete, brick, stucco and wood. Olympic Stain Smartguard Concentrated Multi-Surface Sealant, Clear, 15oz. 4.3 (267) $2200. FREE delivery Dec 19 - 22. Or fastest delivery Wed, Dec 14. Arrives before Christmas. Only 6 …About. The Olympic Wood Protector Waterproofing Sealant is part of the Wood stains test program at Consumer Reports. In our lab tests, Wood stains models like the Wood Protector Waterproofing ... kaiser permanente provider login southern california Thermocafe Stainless Steel Pump Flask - 1.9LAmazon.com: Olympic Waterguard Clear Wood Sealer 45 results for "olympic waterguard clear wood sealer" RESULTS Price and other details may vary based on product size and color. Amazon's Choice Olympic Stain Smartguard Concentrated Multi-Surface Sealant, Clear, 15oz 4.3 (268) $1799 $22.98 FREE delivery Fri, Jan 13 on $25 of items shipped by Amazon Olympic Waterguard Clear Wood Sealer Review/Application 14,174 views Streamed live on Sep 23, 2018 29 Dislike Share Save Kelley Mobile Detail In Utah, we have the most Extreme... copart tanner alabama 2) the stain is rain-ready after just 8 hours. 3) the stain can be applied when air and surface temperatures are as low as 35 Degrees Fahrenheit. 4) If the surface is too hot to touch, lightly mist the surface before application of the stain. Olympic - America's most trusted brand since 1938. Olympic - exterior wood stain for decks & more. cub cadet spark plug cross reference Find many great new & used options and get the best deals for Olympic WaterGuard Wood Waterproofing Sealant Clear - Clear, 5 gal at the best online prices at eBay! Free shipping for …Clear Maximum Working Temperature (Fahrenheit) 90 UV Protection Waterproof For Use on Composite Decking Furniture Ready 24 hours Base Material Water-based Maximum Coverage Area (Sq. Feet) 350 Model Description Wood Protector Clear Exterior Stain (Actual Net Contents: 128-fl oz) Stain Color Clear Container Size 1-gallon Unit of Measure Quantity 128 shooting at valley mall hagerstown md today OLYMPIC WATERGUARD ® Clear waterproofing finish provides protection on multiple surfaces and allows your wood to weather and gray naturally. Water Proofing Protection: Fade Protection: Durability: Colours: Clear Uses: Use on Brick, Concrete, Stucco, Wood and More Find Your Colour Find a Retailer Details Warranty Satisfaction Guaranteed Coverage2.1K views 7 months ago Tune in for a brief 1-year later review of Olympic Water Guard Wood Stain and Sealer! We applied this semi-transparent Woodland Cedar colored product to our... [This review was collected as part of a promotion.] Applied Olympic WaterGuard for wood Waterproofing Sealant Clear to my 10 year old fence after I pressure washed it. It really brings out the beauty of the wood. I included a before and after picture of the results. I expect to repeat the process every two years. But it isn’t all that bad.About. The Olympic Wood Protector Waterproofing Sealant is part of the Wood stains test program at Consumer Reports. In our lab tests, Wood stains models like the Wood Protector Waterproofing ... orthodontist in fayetteville nc that accept medicaid