Primer Layer

Brief Description

Wecryl 123 is a fast-curing, low-viscosity and solvent-free primer for concrete. Wecryl 123 is tested on the basis of the “Technical Delivery Specifications / Technical Test Specifications for Catalyzed Resins for Primers, Sealants and Scratch Coats under Asphalt Surfacing on Concrete”, (TP-BEL-EP) and the additional H PMMA requirements and may be used for the production of waterproofing systems consisting of a welded polymerbitumen sheet on a PMMA-based seal coat, primer or scratch coat for civil engineering structures. Wecryl 123 is approved for application to young concrete (> 7 d). The application and usability on structures and components of the Federal Transport Network is verified in the \"Compilation of certified substances and substance systems according to TLBEL-EP”, a list by the Federal Highway Research Institute (BASt)

Material

2-component, fast-curing, catalysed PMMA-based resin (PMMA = polymethyl methacrylate)

Application

The product can be used for new surfacing or existing surfacing that needs to be fully or partially replaced and that is applied to concrete bridge deck slabs, with welded polymer-bitumen sheeting as the waterproofing layer. Wecryl 123 is approved and tested (test report no. 16/11057/01, Kiwa Flörsheim) in accordance with TL/TP-BEL-EP and H PMMA as well as the compatibility tests in accordance with TL/TP-BEL-B, part 1 and can thereforebe applied on bridge deck surfacing on concrete with a welded polymerbitumen sheeting as waterproofing layer. Approved Welded polymer-bitumen sheeting: • BÖRNER OK 50 N - Welded polymer-bitumen sheet • VEDAPONT BE - Welded polymer-bitumen sheet

Properties and advantages

• Easy to apply
• Fast-curing
• Hydrolysis- and alkali-resistant
• Heat-resistant (welded sheeting, mastic asphalt)
• Fills pores and cracks
• Solvent-free
• Stabilises the surfaces of inferior grades of concrete
• Can be used at temperatures as low as 0 °C