{"product_id":"mariner-black-white-poly-roll","title":"Mariner Black\/White Poly Roll – Poly Film For Greenhouses","description":"\u003ch2\u003eBulk black-and-white poly sheeting for lining and light-proofing\u003c\/h2\u003e\u003cp\u003eThis \u003cstrong\u003eMariner black\/white poly roll\u003c\/strong\u003e is a dual-layered reflective sheet - white on one face to lift light levels in the growing area, black on the other to block light from escaping or entering - supplied as a \u003cstrong\u003e100 metre roll, 2 metres wide\u003c\/strong\u003e, in a \u003cstrong\u003eThick (light-tight)\u003c\/strong\u003e or \u003cstrong\u003eThin\u003c\/strong\u003e gauge. Sold by the roll, it suits lining a large grow room, sealing off a partition wall, or stocking up for multiple builds.\u003c\/p\u003e\u003ch3\u003eKey Benefits\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e100m x 2m roll\u003c\/strong\u003e for large-scale lining or multiple builds from one roll\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual-layer black\/white construction\u003c\/strong\u003e - white face reflects light, black face blocks it\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThick gauge is fully light-tight\u003c\/strong\u003e, for a room that must not leak light in or out\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThin gauge\u003c\/strong\u003e for lighter-duty lining where full light-tightness isn't essential\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSealing a Room Properly\u003c\/h3\u003e\u003cp\u003eLight leaking into or out of a flowering room disrupts the dark period and can affect flowering response; light leaking out of a vegetative or propagation area wastes reflected light that should be bouncing back onto the canopy. A heavier, light-tight sheet solves both at once, while the thinner gauge is a cheaper option for partitions and areas where full blackout isn't critical.\u003c\/p\u003e\u003ch3\u003eHow to Use\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eCut to length from the roll to line walls, ceilings or partitions\u003c\/li\u003e\n\u003cli\u003eFix with staples, tape or batten strips, white side facing into the growing area\u003c\/li\u003e\n\u003cli\u003eOverlap and tape joins to keep the room light-tight, particularly with the Thick gauge\u003c\/li\u003e\n\u003c\/ul\u003e\u003cdiv class=\"hcs-specs\"\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRoll size:\u003c\/strong\u003e 100m x 2m\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThick gauge:\u003c\/strong\u003e 125 micron, light-tight\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThin gauge:\u003c\/strong\u003e 85 micron\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstruction:\u003c\/strong\u003e dual-layer, white\/black\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"EasyGrow","offers":[{"title":"Thick 125μm (light-tight)","offer_id":53798912819466,"sku":"TNT-EASG-001-01","price":154.95,"currency_code":"GBP","in_stock":true},{"title":"Thin 85μm","offer_id":53798912852234,"sku":"TNT-EASG-001-02","price":99.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0748\/7127\/5786\/files\/mariner-black-white-poly-roll-1.jpg?v=1790169728","url":"https:\/\/hydrocropshop.co.uk\/products\/mariner-black-white-poly-roll","provider":"Hydro Crop Shop","version":"1.0","type":"link"}