{"product_id":"acoustic-rubber-underlay-recycled-rubber-crumb-impact-sound-underlay-3mm-to-10mm-timber-concrete-floors","title":"Acoustic Rubber Underlay – Recycled Rubber Crumb Impact Sound Underlay, 3mm to 10mm, Timber \u0026 Concrete Floors","description":"\u003ch2\u003eAcoustic Rubber Underlay for Impact Sound Reduction\u003c\/h2\u003e\n\u003cp\u003eA dense, resilient acoustic underlay manufactured from fully recycled rubber granulate bonded with a cold-cure PuR elastomer binder. Supplied in rolls in five thicknesses from 3mm to 10mm, it is laid beneath the finished floor on timber or concrete subfloors to reduce footfall (impact) noise passing through the floor structure. Its high mass density of 730 kg\/m³ and continually elastic structure mean it does not compress and go dead in the way that cheap foam underlays do.\u003c\/p\u003e\n\n\u003ch3\u003eWhy specifiers choose rubber crumb over foam\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStays resilient under load.\u003c\/strong\u003e Bonded rubber granulate remains elastic long-term rather than crushing flat under furniture and traffic.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh mass, low build-up.\u003c\/strong\u003e 730 kg\/m³ density delivers useful mass in as little as 3mm, so floor levels and door clearances are barely affected.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFully recycled content.\u003c\/strong\u003e Manufactured from recycled rubber granulate, which supports responsible-sourcing requirements on commercial projects.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLevels minor subfloor irregularities.\u003c\/strong\u003e The granular sheet accommodates small undulations in screed and boarding.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorks with both subfloor types.\u003c\/strong\u003e Suitable for timber joisted floors and concrete or screed slabs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical applications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFlat and apartment conversions where footfall noise between dwellings must be controlled\u003c\/li\u003e\n\u003cli\u003eRefurbishment and new-build residential floors beneath engineered wood, laminate and carpet\u003c\/li\u003e\n\u003cli\u003eOffices, hotels, student accommodation and care homes\u003c\/li\u003e\n\u003cli\u003eUpper-floor rooms above bedrooms, meeting rooms or quiet zones\u003c\/li\u003e\n\u003cli\u003eFloating floor build-ups over concrete slabs\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eConstruction\u003c\/h3\u003e\n\u003cp\u003eFine-structure rubber granulate is bonded with a cold-cure polyurethane (PuR) elastomer bonding agent and formed into a uniform sheet, then supplied in rolls. The sheet is homogeneous through its thickness, so it can be cut on site with a sharp trimming knife against a straight edge without delaminating.\u003c\/p\u003e\n\n\u003ch3\u003eSpecification\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eProperty\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eRubber granulate bonded with cold-cure PuR elastomer bonding agent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGranulate structure\u003c\/td\u003e\n\u003ctd\u003eFine\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMass density\u003c\/td\u003e\n\u003ctd\u003e730 kg\/m³ ±5%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTensile strength\u003c\/td\u003e\n\u003ctd\u003e0.60 MPa\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eElongation at break\u003c\/td\u003e\n\u003ctd\u003eApprox. 45%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompression at 10% (DIN 53421), modulus of elasticity\u003c\/td\u003e\n\u003ctd\u003e0.29 MPa \/ 3.38 MPa\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStress characteristics\u003c\/td\u003e\n\u003ctd\u003eCC25: 646 kPa | CC40: 2,098 kPa | CC50: 5,565 kPa\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensional tolerance\u003c\/td\u003e\n\u003ctd\u003e1.5% – DIN 7715 Class M4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThicknesses available\u003c\/td\u003e\n\u003ctd\u003e3mm, 5mm, 6mm, 8mm, 10mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecycled content\u003c\/td\u003e\n\u003ctd\u003eManufactured from fully recycled rubber\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eColour\u003c\/td\u003e\n\u003ctd\u003eBlack, speckled granulate finish\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSuitable subfloors\u003c\/td\u003e\n\u003ctd\u003eTimber and concrete\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSuitable floor finishes\u003c\/td\u003e\n\u003ctd\u003eHardwood, engineered wood, laminate and carpet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCondition\u003c\/td\u003e\n\u003ctd\u003eNew\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eRoll sizes and coverage\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eThickness\u003c\/th\u003e\n\u003cth\u003eRoll size\u003c\/th\u003e\n\u003cth\u003eCoverage per roll\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3mm\u003c\/td\u003e\n\u003ctd\u003e20m × 1m\u003c\/td\u003e\n\u003ctd\u003e20 m²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5mm\u003c\/td\u003e\n\u003ctd\u003e10m × 1.25m\u003c\/td\u003e\n\u003ctd\u003e12.5 m²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e6mm\u003c\/td\u003e\n\u003ctd\u003e10m × 1.25m\u003c\/td\u003e\n\u003ctd\u003e12.5 m² (approx. 58 kg per roll)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e8mm\u003c\/td\u003e\n\u003ctd\u003e10m × 1.25m\u003c\/td\u003e\n\u003ctd\u003e12.5 m²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e10mm\u003c\/td\u003e\n\u003ctd\u003e6m × 1.25m\u003c\/td\u003e\n\u003ctd\u003e7.5 m²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp\u003eRolls are heavy. The 6mm 12.5 m² roll weighs approximately 58 kg and is a two-person lift. Please allow for safe handling on site.\u003c\/p\u003e\n\n\u003ch3\u003eInstallation\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eEnsure the subfloor is structurally sound, clean, dry and free from protruding fixings, dust and debris.\u003c\/li\u003e\n\u003cli\u003eAllow the rolls to acclimatise flat in the room before laying.\u003c\/li\u003e\n\u003cli\u003eRoll out the underlay and butt the edges tightly together. Do not overlap sheets.\u003c\/li\u003e\n\u003cli\u003eCut to size with a sharp trimming knife against a straight edge.\u003c\/li\u003e\n\u003cli\u003eLay the finished floor over the underlay in accordance with the floor manufacturer's instructions.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eFollow the manufacturer's fitting instructions supplied with the product for the specific build-up being constructed. On projects where a measured acoustic result is required, the floor build-up should be designed by, or agreed with, an acoustic consultant.\u003c\/p\u003e\n\n\u003ch3\u003eMaintenance\u003c\/h3\u003e\n\u003cp\u003eNone required once installed. The underlay is fully concealed beneath the finished floor and is not intended to be exposed or walked on directly.\u003c\/p\u003e\n\n\u003ch3\u003eSuitability and limitations – please read before ordering\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAcoustic performance is a property of the whole floor, not the underlay alone.\u003c\/strong\u003e The impact and airborne sound reduction achieved depends on the complete build-up – the structural floor, the ceiling below, any resilient bars, cavity insulation and the floor finish. We do not publish a single dB figure for this product, because a figure quoted out of context is of little use on a real project. If you need certified laboratory test data for a Building Regulations Approved Document E submission or for pre-completion testing, please contact us before ordering and we will request the relevant test reports for your intended build-up.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo integral damp-proof membrane.\u003c\/strong\u003e A separate DPM must be specified where a moisture barrier is required over concrete or screed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnderfloor heating.\u003c\/strong\u003e Compatibility with underfloor heating is not confirmed for this product. Please enquire before specifying it over a heated floor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFire classification.\u003c\/strong\u003e No reaction-to-fire classification is stated by the manufacturer for this underlay. Where a classified build-up is required, please enquire.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterior use only.\u003c\/strong\u003e Not intended for external or permanently wet locations.\u003c\/li\u003e\n\u003cli\u003eSold by the roll only. Cut lengths are not supplied.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eDelivery\u003c\/h3\u003e\n\u003cp\u003eDelivered palletised or kerbside depending on order size. Someone must be available on site to receive the delivery and assist with unloading. Please check the goods before signing. Delivery to Northern Ireland, the Scottish Highlands and some remote postcodes may be subject to a surcharge or may be unavailable – please contact us before ordering.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eNot sure which thickness you need?\u003c\/strong\u003e Contact our team with your floor construction and the result you are trying to achieve and we will advise.\u003c\/p\u003e","brand":"Industrial Polymers UK","offers":[{"title":"3mm (10m2 Roll - 10m x 1m)","offer_id":56387890807163,"sku":"SNUK-ACUND-03","price":199.9,"currency_code":"GBP","in_stock":true},{"title":"5mm (10m2 Roll - 10m x 1m)","offer_id":56387890839931,"sku":"SNUK-ACUND-05","price":187.9,"currency_code":"GBP","in_stock":true},{"title":"6mm (10m2 Roll - 10m x 1m)","offer_id":56387890872699,"sku":"SNUK-ACUND-06","price":227.9,"currency_code":"GBP","in_stock":true},{"title":"8mm (10m2 Roll - 10m x 1m)","offer_id":56387890905467,"sku":"SNUK-ACUND-08","price":296.9,"currency_code":"GBP","in_stock":true},{"title":"10mm (6m2 Roll - 6m x 1m)","offer_id":56387890938235,"sku":"SNUK-ACUND-10","price":188.9,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0579\/7776\/6024\/files\/acoustic-rubber-underlay-hero_29eaf574-04fc-440d-a581-3dd8da520592.png?v=1787303942","url":"https:\/\/industrial-polymers.co.uk\/products\/acoustic-rubber-underlay-recycled-rubber-crumb-impact-sound-underlay-3mm-to-10mm-timber-concrete-floors","provider":"Industrial-polymers ","version":"1.0","type":"link"}