{"title":"Bonding Bridge","description":"\u003cp\u003eLaying tile on tile, applying plaster on smooth concrete, spreading adhesive on putty — these jobs don’t hold with standard primers. The substrate is too smooth: no porosity, no mechanical grip, the adhesive can’t bond. The bonding bridge eliminates this obstacle.\u003c\/p\u003e\n\u003ch3\u003eWhen is a bonding bridge needed?\u003c\/h3\u003e\n\u003cp\u003eA bonding bridge is primarily needed when the substrate surface is non-absorbent or smooth:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eold ceramic tile that is still solid but cannot be removed;\u003c\/li\u003e\n\u003cli\u003epolished or shuttered concrete where the capillaries are closed;\u003c\/li\u003e\n\u003cli\u003eputty and smoothed gypsum surfaces;\u003c\/li\u003e\n\u003cli\u003epreviously painted walls where the paint layer adheres but the surface itself is non-absorbent;\u003c\/li\u003e\n\u003cli\u003epolished natural stone, marble, or granite.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eOn these substrates, the bonding bridge creates micro-roughness, allowing the adhesive, plaster, or leveling compound to bond. Without a bonding bridge, the entire tile or plaster system fails at the substrate-coating interface.\u003c\/p\u003e\n\u003ch3\u003eHow does the bonding bridge work?\u003c\/h3\u003e\n\u003cp\u003eThe bonding bridge is usually a dispersion primer containing quartz or corundum fillers. After application, the substrate surface gains a rough, porous layer to which the next layer can bond both mechanically and chemically. The bonding bridge is not a filler — it does not level or smooth — it solely creates the conditions for adhesion.\u003c\/p\u003e\n\u003cp\u003eAfter drying, the bonding bridge feels slightly damp to the touch — this is not a defect but a sign of an active bonding surface. The next layer must not be applied before the prescribed drying time has elapsed.\u003c\/p\u003e\n\u003ch3\u003eTechnical considerations\u003c\/h3\u003e\n\u003cp\u003eThe bonding bridge cannot be used without limits on every non-absorbent substrate. It does not solve problems on moving, unstable, or deeply damaged substrates: it does not cover substrate defects and after some time, the system will detach along with the bonding bridge. The substrate’s strength must always be checked beforehand.\u003c\/p\u003e\n\u003cp\u003eIn the case of old tiles, the quality of the tile adhesion must also be examined: if there are voids under the original tile or the tile is loose, these tiles must be removed before applying the bonding bridge.\u003c\/p\u003e\n\u003ch3\u003eFor which systems is the bonding bridge used?\u003c\/h3\u003e\n\u003cp\u003eThe bonding bridge is used before tile adhesive when laying tile on tile, before applying plaster on smooth concrete, under leveling compounds on putty, and before brushable waterproofing on polished surfaces. In these cases, the bonding bridge is the foundation of the entire system’s durability.\u003c\/p\u003e\n\u003cp\u003eBrowse our bonding bridges or request advice to assemble the right system for preparing non-absorbent substrates.\u003c\/p\u003e","products":[{"product_id":"kerakoll-keragrip-eco-pulep","title":"Kerakoll Keragrip Eco Pulep solvent-based surface cleaner and adhesion promoter","description":"\u003cp\u003eKerakoll Keragrip Eco Pulep is a colorless adhesion promoter for non-absorbent surfaces. It cleans and forms an adhesion layer — the next layer adheres. Suitable for tiles, marble, metal, and polished concrete.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCreates adhesion on smooth, non-absorbent surfaces: ceramic, thin stone slabs, natural stone, machine-smoothed concrete, wood, PVC, rubber, metal\u003c\/li\u003e\n\u003cli\u003ePreparation for Kerakoll Color Collection systems: Wallcrete, Patina, Microresina, Cementoresina\u003c\/li\u003e\n\u003cli\u003eExtremely fast drying: 5–10 minutes, then the next layer can be applied\u003c\/li\u003e\n\u003cli\u003eFor interior and exterior use, on walls and floors: compatible with underfloor heating\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/en\/products\/kerakoll-ep21\" rel=\"noopener\" target=\"_blank\"\u003eEP21\u003c\/a\u003e thinner: use in the ratio specified in the technical data sheet\u003c\/li\u003e\n\u003cli\u003eLow VOC, A+ air quality rating: odorless, safe for indoor use\u003c\/li\u003e\n\u003cli\u003eNot a standalone topcoat: always requires a subsequent layer (Wallcrete, Microresina, etc.)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial requirement\u003c\/th\u003e\n\u003ctd\u003e≈ 30 ml\/m²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDrying time\u003c\/th\u003e\n\u003ctd\u003e5–10 minutes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eApplication\u003c\/th\u003e\n\u003ctd\u003eWith a cloth or brush\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePackaging\u003c\/th\u003e\n\u003ctd\u003eFrom barrel 10 ℓ \/ 1 ℓ bottle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial requirement\u003c\/th\u003e\n\u003ctd\u003e≈ 30 ml\/m\u003csup\u003e2\u003c\/sup\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStorage\u003c\/th\u003e\n\u003ctd\u003e≈ 12 months\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2\u003eWHAT IS IT FOR?\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eSubstrates (direct application):\u003c\/strong\u003e Ceramic floors, thin stone slabs, natural stones, concrete floors finished with a rotary trowel (helicopter), quartz sand industrial concrete, wood, PVC, rubber, metal.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePrepares for:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eReactive adhesives (EP21, EP21 Rapid)\u003c\/li\u003e\n\u003cli\u003eResin systems (Wallcrete, Patina, Microresina, Cementoresina)\u003c\/li\u003e\n\u003cli\u003eFloorzero self-leveling compound\u003c\/li\u003e\n\u003cli\u003e3CW\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eAreas:\u003c\/strong\u003e Interior and exterior. Walls and floors. Compatible with underfloor heating.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNot suitable for:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBituminous or oil-, solvent-, plasticizer-permeable materials\u003c\/li\u003e\n\u003cli\u003eWet or capillary moisture-prone surfaces\u003c\/li\u003e\n\u003cli\u003eAs a standalone topcoat\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Keragrip Eco Pulep may alter the surface of ceramic, marble, natural stone, and industrial concrete. Use only if a new covering will be applied over the treated surface.\u003c\/p\u003e\n\u003ch2\u003eFREQUENT QUESTIONS\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is it for?\u003c\/strong\u003e Adhesion promoter for non-absorbent surfaces. Cleans the surface and forms an adhesion layer on tiles, glass mosaic, marble, metal.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat surfaces is it suitable for?\u003c\/strong\u003e \u003cbr\u003eCeramic floors, thin stone slabs, natural stones, machine-smoothed concrete, quartz sand industrial concrete, wood, PVC, rubber, metal.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat surfaces is it not suitable for?\u003c\/strong\u003e \u003cbr\u003eBituminous, oily, wet, or capillary moisture-prone surfaces. Remove waxed or lacquered treatments first.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat products can be applied afterward?\u003c\/strong\u003e \u003cbr\u003eReactive adhesives (EP21, EP21 Rapid), resin systems (Wallcrete, Patina, Microresina, Cementoresina), Floorzero, 3CW.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUniversal Wall Primer or Keragrip Eco Pulep?\u003c\/strong\u003e \u003cbr\u003eKeragrip Eco Pulep is for non-absorbent surfaces (tile, marble, metal). The \u003ca href=\"\/en\/products\/kerakoll-universal-wall-primer\"\u003eUniversal Wall Primer\u003c\/a\u003e is for absorbent surfaces (plaster, drywall).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the drying time?\u003c\/strong\u003e \u003cbr\u003e5–10 minutes. If longer, reapply.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it leave stains?\u003c\/strong\u003e \u003cbr\u003eYes. Use only if a new covering will be applied over the surface.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan it be used in showers?\u003c\/strong\u003e Yes. For tile preparation, followed by waterproofing and the Wallcrete system.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow to apply?\u003c\/strong\u003e \u003cbr\u003eWipe the surface with a cloth. Do not pour directly — avoid getting it into joints.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow much is needed per square meter?\u003c\/strong\u003e \u003cbr\u003e≈ 30 ml\/m². 1 liter covers approximately 33 m².\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan it be used to dilute EP21?\u003c\/strong\u003e \u003cbr\u003eYes. Mix in the ratio specified in the technical data sheet.\u003c\/p\u003e","brand":"Kerakoll","offers":[{"title":"1 L \/ Normal","offer_id":42671832269058,"sku":"19349","price":8850.0,"currency_code":"HUF","in_stock":true},{"title":"10L \/ Normal","offer_id":42671832236290,"sku":"19348","price":81000.0,"currency_code":"HUF","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0635\/8027\/4946\/files\/kerakoll-keragrip-eco-pulep-alapozok-es-szerves-elokeszito-anyagai-37148318269698.jpg?v=1702750503"},{"product_id":"kerakoll-active-prime-grip","title":"Kerakoll Active Prime Grip quartz-coated bonding bridge","description":"\u003cp\u003eUniversal, quick adhesion booster for self-leveling subfloor levelers, cement-based adhesives, screeds and plasters. Quartz overlay. One-component, water-based, for indoor and outdoor use.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e The mesh formation of Kerakoll Active Prime Grip provides full compatibility with absorbent and non-absorbent substrates, guaranteeing maximum adhesion when applying the following cement, gypsum or lime-based mineral products.\u003c\/p\u003e\n\u003ctable\u003e\n\n\u003ctbody\u003e\n\n\u003ctr\u003e\n\n\u003cth\u003e Wrapping\u003c\/th\u003e\n\n\u003ctd\u003e 5-10 kg buckets\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003cth\u003e Material requirement\u003c\/th\u003e\n\n\u003ctd\u003e ≈ 0.2–0.3 kg\/m \u003csup\u003e2\u003c\/sup\u003e\n\n\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003cth\u003e Storage\u003c\/th\u003e\n\n\u003ctd\u003e ≈ 12 months\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\n\u003c\/tbody\u003e\n\n\n\u003c\/table\u003e","brand":"Kerakoll","offers":[{"title":"5 KG \/ Normal","offer_id":42917180702978,"sku":"46188","price":25950.0,"currency_code":"HUF","in_stock":true},{"title":"5 KG \/ Expired (-50%)","offer_id":54902446162244,"sku":"46188-exp","price":12975.0,"currency_code":"HUF","in_stock":true},{"title":"10 KG \/ Normal","offer_id":42917180735746,"sku":"19134","price":49000.0,"currency_code":"HUF","in_stock":true},{"title":"10 KG \/ Expired (-50%)","offer_id":54902446195012,"sku":"19134-exp","price":24500.0,"currency_code":"HUF","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0635\/8027\/4946\/files\/kerakoll-active-prime-grip-alapozok-es-szerves-elokeszito-anyagai-37479486914818.jpg?v=1702747803"}],"url":"https:\/\/www.masterworks.hu\/en\/collections\/alapozok-tapadohid.oembed","provider":"Masterworks Hungary","version":"1.0","type":"link"}