{"product_id":"pyrotek-quadzero","title":"Pyrotek Quadzero","description":"\u003cp\u003ePyrotek Quadzero is a foil faced mass loaded vinyl noise barrier for walls, ceilings, ducts and pipework. It works by mass, not by absorption, which makes it a different tool from an acoustic batt rather than an alternative to one.\u003c\/p\u003e\n\u003ch3\u003eBarrier or absorber\u003c\/h3\u003e\n\u003cp\u003eAn acoustic batt absorbs sound energy inside a cavity. A barrier blocks sound passing through a surface. Most real problems need both, and the two do not substitute for each other. If sound is getting through a wall, duct or pipe, mass is what stops it.\u003c\/p\u003e\n\u003ch3\u003eThe numbers\u003c\/h3\u003e\n\u003cp\u003eThe 4 kg\/m² grade at 2.0 mm gives Rw 25 and STC 26, with transmission loss of 20.6 dB at 500 Hz and 30.4 dB at 2000 Hz. The 8 kg\/m² grade at 4.0 mm gives Rw 31 and STC 31, with 26.0 dB at 500 Hz and 35.9 dB at 2000 Hz. Doubling the mass buys roughly 6 Rw points, which is the usual trade in barrier work.\u003c\/p\u003e\n\u003ch3\u003eWhy the foil face\u003c\/h3\u003e\n\u003cp\u003eThe aluminium face bonds readily to other substrates with matching foil tape, which is what makes this the grade of choice for wrapping ducts and pipework. It is rated to ISO 15665 Class A2 and B2 at 6 kg\/m², and NORSOK R-004 Class 6 and 7. Operating range is -40 to 100 °C continuous.\u003c\/p\u003e\n\u003ch3\u003eFire and handling\u003c\/h3\u003e\n\u003cp\u003eIgnitability, spread of flame and heat evolved indices all 0, smoke developed 0 to 1, Group 3 to AS 3837. Free from lead, bitumen and odour producing oils. It cuts, sews, tapes and mechanically fastens, and hangs in lengths up to 5 m.\u003c\/p\u003e\n\u003cp\u003eFor the black, UV and chemical resistant version, see \u003ca href=\"\/products\/pyrotek-wavebar\"\u003eWavebar\u003c\/a\u003e. Full figures are in the table below.\u003c\/p\u003e","brand":"Pyrotek","offers":[{"title":"4KG 1.35 X 5M","offer_id":45225009250486,"sku":"SQ0136526","price":256.73,"currency_code":"AUD","in_stock":true},{"title":"8KG 1.35 X 5M","offer_id":45225009283254,"sku":"SQ7513788","price":404.89,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/3995\/3590\/files\/Quadzero-Tile-Image.webp?v=1782756322","url":"https:\/\/awbm.com.au\/products\/pyrotek-quadzero","provider":"AWBM","version":"1.0","type":"link"}