{"product_id":"pyrotek-wavebar","title":"Pyrotek Wavebar","description":"\u003cp\u003ePyrotek Wavebar is a flexible mass loaded vinyl noise barrier for walls, ceilings, floors and pipework. Black, tear resistant, and built to be laid into a construction rather than seen.\u003c\/p\u003e\n\u003ch3\u003eThe coincidence dip, in plain terms\u003c\/h3\u003e\n\u003cp\u003eStiff light panels like plasterboard, plywood and hollow core walls have a frequency at which they go transparent to sound. It is a property of the panel, and no amount of extra plasterboard of the same type fixes it, because you just move the problem. Adding a dense limp mass layer shifts that dip to a frequency where it matters less. That is what Wavebar is for, and it is why a wall that already sounds solid can still leak a specific range of noise.\u003c\/p\u003e\n\u003ch3\u003eThe numbers\u003c\/h3\u003e\n\u003cp\u003e4 kg\/m² at 2.0 mm gives Rw 25 and STC 26. 8 kg\/m² at 4.0 mm gives Rw 31 and STC 31. Transmission loss at 500 Hz is 20.6 dB and 26.0 dB respectively, rising to 30.4 and 35.9 dB at 2000 Hz.\u003c\/p\u003e\n\u003ch3\u003eTypical targets\u003c\/h3\u003e\n\u003cp\u003eMechanical plant, engine noise, home theatre and audio rooms. Rolls are 1380 mm wide in 5 m lengths, with 10 m also made.\u003c\/p\u003e\n\u003ch3\u003ePractical notes\u003c\/h3\u003e\n\u003cp\u003eResists most chemicals, solvents and petrol, and it is weather and UV resistant, which the foil faced grades are not. Operating range -40 to 100 °C continuous. Cuts with a knife and works around pipes, ducts and cables, and hangs in lengths up to 5 m. Supplied untrimmed, so a surface covering may overhang the usable width. Free from lead and bitumen.\u003c\/p\u003e\n\u003cp\u003eFull figures are in the table below.\u003c\/p\u003e","brand":"Pyrotek","offers":[{"title":"4KG 1.38 X 5M","offer_id":45225009348790,"sku":"SQ1300180","price":242.25,"currency_code":"AUD","in_stock":true},{"title":"8KG 1.38 X 5M","offer_id":45225009381558,"sku":"SQ6030241","price":385.13,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/3995\/3590\/files\/wavebar-main.webp?v=1782756323","url":"https:\/\/awbm.com.au\/products\/pyrotek-wavebar","provider":"AWBM","version":"1.0","type":"link"}