1 1

SpecChem SpecPrep SB

SpecChem SpecPrep SB

REQUEST QUOTATION

Contractor Overview

SpecPrep SB is a two-component epoxy system. Structural concrete bonding agent/anti-corrosion reinforcement coating SpecPrep SB is a three-component, long open time, cement/epoxy bonding adhesive and anti-corrosion rebar coating. It offers a 24-hour open time and provides a structural bond for fresh concrete or repair mortars to existing concrete.

Best For

  • Structural bonding and adhesive work
  • Concrete repair bonding
  • Commercial epoxy applications

Key Features

  • Solvent-free
  • VOC compliant and solvent-free
  • Two-component epoxy chemistry
  • Used for bonding, repair, or protection applications

Material & Application Notes

Structural concrete bonding agent/anti-corrosion reinforcement coating SpecPrep SB is a three-component, long open time, cement/epoxy bonding adhesive and anti-corrosion rebar coating. It offers a 24-hour open time and provides a structural bond for fresh concrete or repair mortars to existing concrete. Additionally, it serves as an anti-corrosion protective coating for steel rebar in concrete restoration, effectively resisting water and chloride penetration without forming a vapor barrier after curing.

Why Contractors Choose It

Contractors choose SpecPrep SB when bonding strength, placement consistency, and the right epoxy chemistry matter to the repair or installation.

View full details

Application

Surface Preparation:

  • Ensure surfaces are clean and structurally sound.
  • Remove all oil, grease, dirt, laitance, rust, and curing compounds.
  • Abrasive blast cleaning and mechanical removal methods are recommended to achieve a Concrete Surface Profile (CSP) of CSP 5-7 per ICRI Guideline # 310.2-1997.

Mixing Instructions:

  • Ready to use; do not thin with solvents.
  • Condition materials to a minimum of 60°F before use.
  • Mix 1 part of Part A with 1 part of Part B for 1 minute using a low-speed drill with a Jiffy mixer or paddle.
  • Slowly add the pre-measured Part C to achieve a smooth, lump-free consistency over 3 minutes.
  • Mix only what can be applied within the pot life.

Application:

  • Apply SpecPrep SB to the saturated surface damp (SSD) substrate using a stiff brush or hopper gun.
  • For bonding, apply at a rate of 65-75 sq ft per gallon to a minimum thickness of 20 mils.
  • The material can act as an effective bonding agent for up to 24 hours at approximately 65°F.

Packaging

Available in 1-gallon units and 3.75-gallon units.

Test Data

  • Compressive Strength (ASTM C109):3 days: 3,200 psi7 days: 6,200 psi28 days: 8,250 psi
  • Flexural Strength (ASTM C348):28 days: 1,285 psi
  • Bond Strength (ASTM C882):7 days with 1-hour open time: 2,490 psi24-hour open time: 2,550 psi