Flex Putty "HOLDENBOND"

Description: Trowel able urethane for repairing and lining process equipment exposed to wear, impact, abrasion, vibration, and expansion/contraction

Intended Use: Repair and rebuild conveyor belts. Line process equipment to dampen noise. Line concrete control joints. Cast flexible molds, fixtures, and parts. Pot and encapsulate

Product Features: Trowels on smoothly. Cures to tough, medium‐hard rubber (Shore 87A)

Limitations: None

Surface Preparation:

For METAL SURFACES, thoroughly clean area to be repaired, rebuilt, or lined with HOLDENBOND ® conditioner. Remove any oil, grease, or dirt. Roughen surface by grinding with a coarse wheel or an abrasive disc pad. To prime this surface, apply a coat of HOLDENBOND ® FL‐10 Primer and allow to dry tack‐free for 15 minutes. If the metal surface requires maximum tear resistance or is exposed to moisture, or if submerged in water, use HOLDENBOND ® FL‐10 and HOLDENBOND ® FL‐20 Primer.
For RUBBER SURFACES, thoroughly clean area with an abrasive pad and HOLDENBOND ® Cleaner Blend 300. Surface can also be roughened with a grinding wheel so that it is coarse and free from oil and dirt that may clog the “pores” of the rubber.
Wipe or roughen surface with Cleaner Blend 300 until the cloth no longer picks up the color of the rubber. The rubber should appear new or deeper in color. To prime this surface, apply a coat of HOLDENBOND ® FL‐20 Primer and allow to dry tackfree for 15‐20 minutes. Use Devcon®FL‐40 Primer on “hard‐to‐bond” rubber surfaces as this gives ultimate peel resistance. Multiple coats may be necessary for porous rubber surfaces.
For MAXIMUM ADHESION, sandblast the surface with an angular abrasive until a minimum depth profile of 2‐3 mils is met. Blast to near‐white finish specification SSPC‐SP5 (Steel Structure Painting Council). Prime surface immediately after sandblasting to prevent oxidation.

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