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SpecChem SpecPoxy Binder

SpecChem SpecPoxy Binder

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ASTM 881 Compliant Low-Mod, Epoxy Binder/Adhesive

SpecPoxy Binder is a two-component, multi-purpose, low-modulus, moisture-tolerant epoxy binder adhesive. It meets ASTM C881 requirements and can be used as a multilayer, waterproof, skid-resistant polymer overlay system for bridges and parking decks. This low-viscosity binder is solvent-free and offers flexibility to sustain movement due to thermal changes.

  • Low Modulus, High-Strength Adhesive: Meets ASTM C881 requirements.
  • Moisture Tolerant: Can be applied in damp conditions.
  • Flexible: Capable of sustaining movement due to thermal changes.
  • Waterproof/Skid-Resistant Surfaces: Creates impermeable surfaces that are also shock-absorbing.
  • Easy Aggregate Blending: Ideal for mortar repairs, allowing easy blending of aggregates.
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Application

Surface Preparation

  • Cleaning the Surface:Ensure surfaces are clean, dry, and free from oil, grease, dirt, laitance, curing compounds, and other foreign materials. Achieve optimal adhesion by creating a roughened, open profile through shotblasting or mechanical abrasion. Vacuum thoroughly to remove dust and debris.

Mixing and Application

  • Mixing SpecPoxy Binder:Do not thin with solvents. Ensure air, material, and surface temperatures are at least 40°F. Precondition materials to 75°F for easier mixing. Mix 1 part of Part A with 1 part of Part B using a low-speed drill and Jiffy mixer for three minutes.
  • Epoxy Mortar Preparation:Gradually add 3.5 to 5 parts of clean, dry silica sand to 1 part of mixed SpecPoxy Binder, ensuring the sand is fully wetted by the epoxy. Apply a neat coat of SpecPoxy Binder as a primer to the prepared substrate, then trowel or screed the epoxy mortar while the primer is tacky.
  • Broadcast Overlays:Apply neat SpecPoxy Binder with a 3/16” notched squeegee at approximately 75-100 sq ft per gallon. Broadcast clean, dry aggregate over the binder after it has leveled out, then remove excess aggregate after curing.

Packaging

Available in 1 gallon units, 2 gallon units, and 10 gallon units.

Shelf Life

  • Storage:Store in original tightly closed containers.
  • Duration:Shelf life is two years from the date of manufacture when stored properly.

Test Data

  • ASTM Compliance:ASTM C 881 Type III, Grade 1, Class B & C
  • Initial Cure:24 hours
  • Final Cure:7 days
  • Compressive Strength (ASTM D695):7,500 psi
  • Bond Strength at 14 days (ASTM 882):2,750 psi
  • Elongation at Break (ASTM D638):10%
  • Water Absorption (ASTM D570):0.5%
  • Mix Ratio:1 to 1
  • Mixed Color:Gray
  • Viscosity:2900 cps
  • Gel Time (ASTM 881):45 minutes
  • Tack-Free Time (70°F):3.5 hours

Standards

  • ASTM Compliance:ASTM C 881 Type III, Grade 1, Class B & C