The Importance of Adhesive Primers and Promoters

Permanently bonding porous substrates can be a very difficult task. With the use of adhesive primers and promoters this daunting task can be achieved quickly and easily. The main purpose of adhesive primers and promoters is to enhance the bond strengths to acrylics, ABS, polycarbonates, PPOs, polysulfones, polyesters, styrenics and rigid PVCs. After applying a primer or promoter to the substrate surface the compound is heavily absorbed into the substrate ultimately creating a new surface for the adhesive to bond to. Application should be made to freshly cleaned surfaces, free of dirt, grease and other contaminants to ensure outstanding results.

Benefits of Adhesive Primers and Promoters

Adhesive primers and promoters improve the performance properties of epoxies, urethanes and silicones. Some benefits include:

  • Higher moisture resistance
  • Faster cure time
  • Increased chemical resistance
  • Superior high temperature resistance

Adhesive Primer MasterSil 718

MasterSil 718 is a specially formulated silicone primer developed by Master Bond for use with silicone elastomers and sealants to promote adhesion to various difficult-to-bond substrates. It is a one component, low viscosity colorless liquid which can be applied by brushing, wiping or dipping. This high performance primer may be left to dry for up to 24 hours before application of the RTV compound without loss of bonding performance.

Advantages of Adhesive Primer MasterSil 718

MasterSil 718 is a versatile system and has been successfully used throughout a wide range of industries to enhance substrate to adhesive bond strength. This exceptional primer helps engineers save time and increases productivity due to its convenient and easy application options. MasterSil 718 produces high strength, permanent bonds for some of the most difficult substrates.

This information has been sourced, reviewed and adapted from materials provided by Master Bond Inc.

For more information on this source, please visit Master Bond Inc.

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