{"product_id":"stelmax-1961-gap-filler-300g-cartridge-white","title":"Stelmax 1961 PVCu Gap Filler 300g Cartridge - White","description":"\u003cp\u003eStelmax 1961 is a solvent-based gap filler specifically formulated for use with PVCu window and door installations. Supplied in a 300g cartridge, it fills gaps between frames and masonry, providing a smooth, paintable finish that blends with the surrounding surfaces.\u003c\/p\u003e\n\n\u003cp\u003eUnlike standard caulks and fillers, the 1961 is designed to remain flexible after curing, accommodating the natural movement between different building materials without cracking or pulling away. It skins over quickly and can be overpainted once fully cured, making it a practical choice for finishing new-build and replacement window installations.\u003c\/p\u003e\n\n\u003cp\u003eThe white finish matches most PVCu frames straight out of the tube, reducing the need for additional decoration in many applications. It adheres well to PVCu, timber, brick, concrete, and plaster, making it a versatile option for window and door fitters looking for a reliable gap-filling solution.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePurpose-made for PVCu window and door frame installations\u003c\/li\u003e\n\u003cli\u003eRemains flexible after curing to accommodate building movement\u003c\/li\u003e\n\u003cli\u003eOverpaintable once cured\u003c\/li\u003e\n\u003cli\u003eAdheres to PVCu, timber, brick, concrete, and plaster\u003c\/li\u003e\n\u003cli\u003e300g cartridge for use with standard sealant guns\u003c\/li\u003e\n\u003cli\u003eWhite finish to match most PVCu frames\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Stelmax","offers":[{"title":"Default Title","offer_id":56788128104821,"sku":"STEL1961WHITE","price":8.34,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0594\/2296\/5941\/files\/shopping_1.webp?v=1772025711","url":"https:\/\/invictatools.co.uk\/products\/stelmax-1961-gap-filler-300g-cartridge-white","provider":"Invicta Tools","version":"1.0","type":"link"}