{"product_id":"bondo-fiberglass-reinforced-filler-kit-1-37-lb-with-0-5-oz-cream-hardener-short-strand-waterproof-quick-sanding","title":"bondo Fiberglass Reinforced Filler Kit 1.37 lb with 0.5 oz Cream Hardener — Short Strand, Waterproof, Quick-Sanding","description":"\u003cp\u003e\u003cstrong\u003eBondo Short Strand Fiberglass Reinforced Filler is a fast-curing, waterproof body filler reinforced with short fiberglass strands designed to patch holes, rust-outs and dents up to 1\/2 inch without backing materials.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis two-part kit combines a 1.37 lb tub of fiberglass-reinforced filler with a 0.5 oz (14 g) dose of Bondo red cream hardener for a strong, sandable repair that works on metal, wood, concrete and fiberglass. The added short strands provide higher tensile strength than traditional fillers while a slightly thicker consistency helps control flow on vertical surfaces for neater application. Use it during the fill stage of a body repair workflow and finish with glaze and paint for a durable, paint-ready surface.\u003c\/p\u003e\n\n\u003ch3\u003eHow quickly will this filler cure and be ready to sand?\u003c\/h3\u003e\n\u003cp\u003eWhen mixed with the included red cream hardener, the filler becomes sandable in about 20 minutes under normal workshop conditions. Cure time can vary with temperature and mix ratio, so follow recommended amounts for consistent results.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSandable in as little as 20 minutes under typical conditions\u003c\/li\u003e\n  \u003cli\u003eFast drying reduces overall repair time\u003c\/li\u003e\n  \u003cli\u003eAvoid low temperatures which slow curing\u003c\/li\u003e\n  \u003cli\u003eProper mix ratio ensures predictable set time\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat types of damage and materials is this product suitable for?\u003c\/h3\u003e\n\u003cp\u003eThis filler is formulated for patching rust-outs, small holes (up to 1\/2 inch), dents and general body repairs on a variety of substrates. It bonds well to metal, fiberglass, concrete, masonry and wood when prepared correctly.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRepairs holes and rusted areas up to 0.5 inches without backing\u003c\/li\u003e\n  \u003cli\u003eWorks on automotive panels, boats, and structural items like wood or masonry\u003c\/li\u003e\n  \u003cli\u003eCan be used with standard body filler and glaze for layered repairs\u003c\/li\u003e\n  \u003cli\u003eWaterproof formula suitable for exterior and marine exposure\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does the fiberglass reinforcement change performance?\u003c\/h3\u003e\n\u003cp\u003eShort interlocking fiberglass strands increase strength and resistance to cracking compared with conventional lightweight fillers. The reinforcement gives a tougher patch that holds up better under vibration and flexing.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFiberglass strands create a stronger, more durable repair\u003c\/li\u003e\n  \u003cli\u003eThicker consistency reduces sag on vertical surfaces\u003c\/li\u003e\n  \u003cli\u003eImproved structural integrity for areas with movement or stress\u003c\/li\u003e\n  \u003cli\u003eCompatible with typical automotive paints when properly primed\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I apply and finish a repair with this kit?\u003c\/h3\u003e\n\u003cp\u003ePrepare the damaged area by removing rust, loose material and contaminants, then mix a small amount of filler with the cream hardener. Apply, shape roughly while workable, allow to cure, then sand, glaze and prime before topcoat.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eClean and abrade the surface for best adhesion\u003c\/li\u003e\n  \u003cli\u003eUse the supplied hardener—add sparingly and mix thoroughly\u003c\/li\u003e\n  \u003cli\u003eApply in thin layers for hole fills; build up as needed\u003c\/li\u003e\n  \u003cli\u003eSand, use glaze for fine imperfections, then prime and paint\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: This product suits DIYers, collision repair pros and marine technicians who need a stronger-than-normal body filler for spot repairs without fabric backing. It’s ideal when you want a waterproof, fast-setting repair for small holes and rust-outs on cars, boats, wood or masonry, and when a quicker, sandable finish is required to return the surface to paint readiness.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I fill a 1\/2 inch hole without backing cloth?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. This fiberglass-reinforced filler is designed to fill holes up to 0.5\" without backing strips or cloth when applied per instructions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is it safe to use on boats?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The waterproof formula is suitable for marine surfaces like boat decks and hull repairs when properly prepared and finished.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"bondo","offers":[{"title":"Default Title","offer_id":48086301114526,"sku":"B00PB3NTFO","price":41.29,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/bondo-front-tub-1-37lb.jpg?v=1785894413","url":"https:\/\/northtrailauto.ca\/products\/bondo-fiberglass-reinforced-filler-kit-1-37-lb-with-0-5-oz-cream-hardener-short-strand-waterproof-quick-sanding","provider":"North Trail Auto","version":"1.0","type":"link"}