{"product_id":"viegapex-barrier-1-2-x-300-black-w-stripe-11425","title":"ViegaPex Barrier 1\/2\" X 300' - Black w\/ Stripe (11425)","description":"\u003cstrong\u003eViegaPex Barrier 1\/2\" X 300' - Black w\/ Stripe (11425)\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003eViegaPEX Barrier tubing is produced from cross-linkable, high density polyethylene resin. ViegaPEX Barrier includes four layers. The first layer is cross-linked, high density polyethylene. The second layer is an adhesive for the third layer, the ethylene vinyl alcohol layer (EVOH oxygen barrier). The fourth layer is another thin layer of polyethylene, applied on the outside to protect the EVOH layer from damage. EVOH is highly resistant to the passage of oxygen.\u003cbr\u003e\u003cbr\u003eViegaPEX Barrier tubing is recommended for hydronic radiant heating, cooling and snow melting systems using water or a water\/glycol mix as the heat transfer media. Tubing may be installed in concrete, gypsum based lightweight concrete, sand, asphalt (in accordance with special guidelines) in or under wood flooring or behind wallboard or plaster. ViegaPEX Barrier may also be used as transfer lines for baseboard heating systems with a maximum operating temperature of 200F @ 80 psi.\u003cbr\u003e\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eViegaPEX Barrier tubing\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003ePEX\u003c\/li\u003e\n\u003cli\u003eCoil\u003c\/li\u003e\n\u003cli\u003eOxygen diffusion barrier, protective outer layer\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eTechnical Data\u003c\/strong\u003e\u003c\/p\u003ePEX designation code 5306 \u003cbr\u003eChlorine resistance rating CL5 \u003cbr\u003eUV resistance 6 months","brand":"Viega","offers":[{"title":"Default Title","offer_id":47344221683885,"sku":"108179","price":287.18,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0785\/5895\/3645\/files\/BarrierPex_6e007bb3-9225-444b-9a26-da697ff637e0.png?v=1787905903","url":"https:\/\/www.bostonheatingsupply.com\/products\/viegapex-barrier-1-2-x-300-black-w-stripe-11425","provider":"Boston Heating Supply","version":"1.0","type":"link"}