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Acrydur® GRM

Acrylic Primer for metal substrate

Product description
Acrydur® GRM is a solvent free, low viscosity, two component MMA-acryllic resin based primer.

Fields of application
Acrydur® GRM is designed for use as a primer on metal substrates prior to the application of ACRYDUR® flooring Systems. Please refer to individual system data sheets.

Download TDS

Features and benefits

  • Low viscosity

  • Easy to apply

  • Excellent penetration

  • Seals pores and capillaries

  • Excellent bond to substrate

  • Fast curing

Substrate preparation
All substrates must be structurally sound, clean and dry and free from oil, grease and loose material and any other contamination which might impair adhesion. Mechanical preparation such as captive shot blasting, scarification, and diamond grinding for edge work should be used to produce a substrate surface profile suitable for the application of a resin finish. The tensile strength of the substrate should exceed 1.5MPa. The residual moisture content should be less than 5%. Acrydur® GRM should be applied when substrate temperatures are constant or falling to minimise the risk bubble and void formation due to expansion of air within the substrate when temperatures are rising. This is particularly important to note on external applications. The curing reactions are influenced by the ambient, material and substrate temperatures. Low temperatures lengthen the pot life, open- and curing times. High temperatures shorten pot life, open- and curing times. The temperatures should not fall below the minimum stated until the material is fully cured. The temperature of the substrate must be at least 3°C above the dew point both during the application and for at least a further 24 hours (at 15°C).

ACRYDUR® GRM (part A) is supplied in prepacked units along with Acrydur ®RC Hardener (part B). Pour the entire contents of part B into the container of part A. Mix with a low speed (ca.300 rpm) electric drill and paddle for at least 3 minutes until homogeneous. Keep the mixing head submerged to avoid entrapping air. Ensure that the primer layer is complete to fully seal the substrate concrete. Broadcast Ulfcar® Quartz into the still wet primer to provide a bond bridge for subsequent layers.

ACRYDUR® GRM: Typically 0.3-0.5 kg/m2 depending upon surface texture and porosity of the substrate concrete. Very porous substrates may require double priming.

Ulfcar Quartz: Typically 1.0kg/m2

Cleaning agent
Tools must be cleaned immediately after use with Ulfcar® Tool Cleaner or other suitable solvent.

Acrydur® GRM is supplied in 10 kg,  190 kg or 900 kg units.

Minimum 12 months stored in original containers under dry conditions at a temperature between 15-20°C. Do not expose to direct sunlight.

Technical data for Liquid material

Mixing Ratio A:B 10 kg : 0,2 kg
Mixed density 0,98 kg/l
Mixed Viscosity@23°CBrookfield DV-II200 cP
Working time@23°C 7 minutes
Ready for traffic@23°C 30 minutes
Fully cured 23°C 2 hours
Substrate temperature -30°C - +30°C
Max relative humidity Max 85%

Technical data cured material

Thickness 0,3 mm
DensityDIN 534971,16 G/ML
SHORE A hardessDIN 5350580
Elongation DIN 534557%

This information and all further technical advice is based on our present knowledge and experience. However, it implies no liability or other legal responsibility on our part, including with regard to existing third party intellectual property rights, especially patent rights. In particular, no warranty, whether express or implied, or guarantee of product properties in the legal sense is intended or implied. We reserve the right to make any changes according to the technological progress or further developments. The customer is not released from the obligation to conduct carefull inspection and testing of incoming goods. Performance of the product described herein should be verified by testing, which should be carried out by only qualified experts in the sole responsibility of a customer. Please contact ULFCAR for the latest version. All our documents, offers, ect. are in association with our general sales, delivery and application conditions.

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