{"title":"S-Glass Fiberglass Cloth","description":"\u003ch2\u003eWhen E-glass is not strong enough for the weight\u003c\/h2\u003e\n\u003cp\u003eS-glass is a different glass chemistry, not a different weave. The same yardage in S-2 glass carries roughly 30 percent more breaking strength and noticeably more stiffness than E-glass of the same weight, which is why it shows up on boards, race hulls, foil parts and anywhere a laminate has to survive impact without getting heavier. The trade is price: expect to pay around twice what the equivalent E cloth costs.\u003c\/p\u003e\n\u003ch3\u003eWhere it earns its money\u003c\/h3\u003e\n\u003cp\u003eS-glass is worth it when weight is the constraint and failure is expensive. A surfboard or SUP deck that has to take heel dents, a kayak hull that gets dragged over rock, a foil fuselage, a repair on a hull that already flexes more than it should. It is not worth it for general sheathing, fairing layers or anything you are going to add thickness to anyway. For those jobs, buy the \u003ca href=\"\/collections\/e-glass-fiberglass-cloth\"\u003eE-glass\u003c\/a\u003e and put the savings into more layers.\u003c\/p\u003e\n\u003ch3\u003eGenuine S-2, and it says so\u003c\/h3\u003e\n\u003cp\u003eSome suppliers sell a heavier E-glass as \"S-type\" or \"high strength\". What is on this page is real S-2 glass in the published mill styles: Style 6522 in 4 oz, Style 6533 in 6 oz and Style 6781 in 8.9 oz 8-harness satin, which is the same satin construction as 7781 with the stronger glass. Every listing shows the style number and the dry breaking strength in its specifications so you can check our claim against the mill data rather than take our word for it.\u003c\/p\u003e\n\u003ch3\u003eWorking with it\u003c\/h3\u003e\n\u003cp\u003eS-glass wets out and handles like E-glass, so nothing about your layup changes. Use epoxy to get the full benefit; polyester and vinyl ester will bond fine but will usually be the weak link before the glass is. Widths run narrower than E cloth at 27 and 30 inches, which suits boards and panels more than full hull sheathing.\u003c\/p\u003e","products":[{"product_id":"4oz-fiberglass-s-cloth","title":"4oz Fiberglass S Cloth - Style 6522","description":"\u003c!--bs-body-v1--\u003e\n\u003cp\u003eStyle 6522 is a 4 oz\/yd² (136 g\/m²) plain weave woven from S-2 glass, the high-strength fiber that gives roughly 25 to 30 percent more breaking strength than E-glass at the same weight. 0.0058\" (0.15 mm) thick, in 27\" and 30\" widths.\u003c\/p\u003e\n\u003cp\u003eUse it where every ounce counts: surfboard and SUP skins, kayak and canoe laminates, RC and drone parts, and light skins that still need to take a hit. It wets out clear like 4 oz E-glass. Works with epoxy, polyester or vinyl ester; pair it with epoxy to get the most out of the fiber.\u003c\/p\u003e\n\u003cp\u003eSee \u003ca href=\"\/blogs\/composites\/what-oz-fiberglass-cloth-to-use-a-comprehensive-guide\"\u003ehow to pick a cloth weight\u003c\/a\u003e for the full comparison.\u003c\/p\u003e","brand":"Boat Suppliers","offers":[{"title":"27\" \/ 1 Yard","offer_id":49997886521646,"sku":"FG-C0427S","price":13.0,"currency_code":"USD","in_stock":true},{"title":"27\" \/ 3 Yards","offer_id":49997886554414,"sku":"FG-C0427S-03","price":37.86,"currency_code":"USD","in_stock":true},{"title":"27\" \/ 10 Yards","offer_id":49997886587182,"sku":"FG-C0427S-10","price":122.54,"currency_code":"USD","in_stock":true},{"title":"27\" \/ 25 Yards","offer_id":52655119892782,"sku":"FG-C0427S-25","price":288.4,"currency_code":"USD","in_stock":true},{"title":"27\" \/ Full Roll (125 Yards)","offer_id":49997886619950,"sku":"FG-C0427SR","price":1399.99,"currency_code":"USD","in_stock":true},{"title":"30\" \/ 1 Yard","offer_id":49997886652718,"sku":"FG-6522-30","price":13.99,"currency_code":"USD","in_stock":true},{"title":"30\" \/ 3 Yards","offer_id":49997886685486,"sku":"FG-6522-30-03","price":40.57,"currency_code":"USD","in_stock":true},{"title":"30\" \/ 10 Yards","offer_id":49997886718254,"sku":"FG-6522-30-10","price":131.3,"currency_code":"USD","in_stock":true},{"title":"30\" \/ 25 Yards","offer_id":52655119925550,"sku":"FG-6522-30-25","price":309.0,"currency_code":"USD","in_stock":true},{"title":"30\" \/ Full Roll (125 Yards)","offer_id":49997886751022,"sku":"FG-6522-30R","price":1499.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0840\/4071\/2494\/files\/4oz-s-2-glass-cloth-style-6522-roll.jpg?v=1789521929"},{"product_id":"6oz-fiberglass-s-cloth","title":"6oz Fiberglass S Cloth - Style 6533","description":"\u003c!--bs-body-v1--\u003e\n\u003cp\u003eStyle 6533 is a 6 oz\/yd² (203 g\/m²) plain weave woven from S-2 glass, with roughly 25 to 30 percent more breaking strength than E-glass at the same weight. 0.0089\" (0.23 mm) thick, in 27\" and 30\" widths.\u003c\/p\u003e\n\u003cp\u003eIt is the general-purpose layup weight in a stronger fiber: board decks and rails, paddle and kayak laminates, and repairs where you want 6 oz handling with more strength behind it. Works with epoxy, polyester or vinyl ester; pair it with epoxy to get the most out of the fiber.\u003c\/p\u003e\n\u003cp\u003eSee \u003ca href=\"\/blogs\/composites\/what-oz-fiberglass-cloth-to-use-a-comprehensive-guide\"\u003ehow to pick a cloth weight\u003c\/a\u003e for the full comparison.\u003c\/p\u003e","brand":"Boat Suppliers","offers":[{"title":"27\" \/ 1 Yard","offer_id":50003018383662,"sku":"FG-C0627S","price":15.99,"currency_code":"USD","in_stock":true},{"title":"27\" \/ 3 Yards","offer_id":50003018416430,"sku":"FG-C0627S-03","price":45.98,"currency_code":"USD","in_stock":true},{"title":"27\" \/ 10 Yards","offer_id":50003018449198,"sku":"FG-C0627S-10","price":148.81,"currency_code":"USD","in_stock":true},{"title":"27\" \/ 25 Yards","offer_id":52655119958318,"sku":"FG-C0627S-25","price":350.2,"currency_code":"USD","in_stock":true},{"title":"27\" \/ Full Roll (125 Yards)","offer_id":50003018481966,"sku":"FG-C0627SR","price":1699.99,"currency_code":"USD","in_stock":true},{"title":"30\" \/ 1 Yard","offer_id":50003018514734,"sku":"FG-C0630S","price":17.18,"currency_code":"USD","in_stock":true},{"title":"30\" \/ 3 Yards","offer_id":50003018547502,"sku":"FG-C0630S-03","price":50.04,"currency_code":"USD","in_stock":true},{"title":"30\" \/ 10 Yards","offer_id":50003018580270,"sku":"FG-C0630S-10","price":161.94,"currency_code":"USD","in_stock":true},{"title":"30\" \/ 25 Yards","offer_id":52655119991086,"sku":"FG-C0630S-25","price":381.1,"currency_code":"USD","in_stock":true},{"title":"30\" \/ Full Roll (125 Yards)","offer_id":50003018613038,"sku":"FG-C0630SR","price":1849.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0840\/4071\/2494\/files\/6oz-s-2-glass-cloth-style-6533-roll.jpg?v=1789521932"},{"product_id":"8-9oz-fiberglass-s-cloth-satin-weave","title":"8.9oz Fiberglass S Cloth - Style 6781 Satin Weave","description":"\u003c!--bs-body-v1--\u003e\n\u003cp\u003eStyle 6781 is the S-2 glass version of 7781: the same 8-harness satin weave, weight and thread count, woven from S-2 fiber for roughly 25 to 30 percent more breaking strength than E-glass at the same weight. 8.9 oz\/yd² (302 g\/m²), 0.0097\" (0.25 mm) thick, 38\" wide.\u003c\/p\u003e\n\u003cp\u003eReach for it when a part has to be as strong as possible without adding plies: high-load skins, race hulls, board rails, aircraft and prototype parts. It drapes like 7781, lays flat into compound curves and wets out clear. Works with epoxy, polyester or vinyl ester; pair it with epoxy to get the most out of the fiber.\u003c\/p\u003e\n\u003cp\u003eHandle it like any satin: move cut pieces flat, and flip every other ply for a balanced laminate, since one face is mostly warp and the other mostly fill. Same weave for less money: \u003ca href=\"\/products\/8-9oz-fiberglass-cloth-style-7781\"\u003eStyle 7781 E-glass\u003c\/a\u003e in 50\" width.\u003c\/p\u003e","brand":"Boat Suppliers","offers":[{"title":"38\" \/ 1 Yard","offer_id":50003020546350,"sku":"FG-6781-38","price":27.99,"currency_code":"USD","in_stock":true},{"title":"38\" \/ 3 Yards","offer_id":50003020579118,"sku":"FG-6781-38-03","price":81.21,"currency_code":"USD","in_stock":true},{"title":"38\" \/ 10 Yards","offer_id":50003020611886,"sku":"FG-6781-38-10","price":253.61,"currency_code":"USD","in_stock":true},{"title":"38\" \/ 25 Yards","offer_id":52655120023854,"sku":"FG-6781-38-25","price":597.4,"currency_code":"USD","in_stock":true},{"title":"38\" \/ Full Roll (125 Yards)","offer_id":50003020644654,"sku":"FG-6781-38R","price":2899.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0840\/4071\/2494\/files\/8.9ozSGlass-SatinWeave.jpg?v=1761103572"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0840\/4071\/2494\/collections\/8.9ozSGlass-SatinWeave.jpg?v=1789521750","url":"https:\/\/boatsuppliers.com\/collections\/s-glass-fiberglass-cloth.oembed","provider":"Boat Suppliers","version":"1.0","type":"link"}