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Technical Data Sheet - Penetrating Epoxy

Product Name

Touchstone™ Penetrating Epoxy

Manufacturer

Bonstone Materials Corporation

Download Technical Data Sheet PDF

Download Printable Datasheet 409 KB File

Product Description

A two-component, very low viscosity, exterior grade, clear, crack penetrating epoxy.

Basic Uses:

  • Penetration of deep thin cracks in stone for high adhesive strength
  • Filling fissures in stone
  • Bonding stone to stone
  • Consolidate stone slabs

Limitations:
Use on dry substrates. Use on oil, grease, and coating free substrates.

Applicable Standards:
Meets ASTM C-881, Type I, II; Class C, GRADE 1

Technical Data

Mixed Properties Values Test Methods
Mix Ratio: Two parts A to one part B, by volume  
Viscosity, mixed, 75°F: 260 centipoise  
Pot Life @ 75°F: 40 minutes  

(Note: Every 15 degrees change in temperature either cuts in half or doubles the viscosity).


Cured seven days at 75°F

Cured Properties Values Test Methods
Initial set time @ 75°F: 6-8 hours  
Full cure time @ 75°F: within 24 hours  
Shore D hardness: 78 ASTM D-2240
Tensile Strength: 6,902 psi ASTM D-638
Tensile Modulus: 315,225 psi ASTM D-638
Tensile Elongation at break: 3.0% ASTM D-638
Compressive Strength: 10,562 psi ASTM D-695
Compressive Modulus: 141,090 psi ASTM D-695

Installation

General Instructions
See separate doweling, laminating, and patching instructions for more specific instructions. CSI format specifications are available.

Surface Preparation & Use:
Use gloves, wear eye protection, and avoid skin contact. When grinding cured joints, wear a dust mask. Substrate to be bonded must be completely dry and dust-free. Mix only the amount of epoxy which can be used in 10 minutes. Avoid stressing joint before complete cure of epoxy. Mask areas which must be kept free of epoxy. Clean uncured epoxy from tools with toluene or xylene. Remove cured epoxy mechanically.

Mixing instructions:
All materials should be at or above 55°F. Combine the two ingredients at the following volume ratio: two parts Penetrating A to one part Penetraing B. Mix thoroughly - ingredients must be blended homogeneously for proper cure.

Temperature dependency:
Temperature will affect the working properties of the material. Approximately every 15°F results in doubling the speed of cure. Therefore, at 90 °F set time is cut in half, at 60°F the set time is doubled. Do not use on a substrate at a temperature below 55°F.

Coverage:
Approximately 30 square feet per gallon when applied at 50 mils (1/16th of an inch). 231 cubic inches per gallon.

Availability

Packaging and storage
TOUCHSTONE™ Penetrating is available in quarts, gallons, and 5 gallon pails. Shelf life is approximately one year if kept in unopened cans in a dry area at 75°F.

**If TOUCHSTONE™ Penetrating Epoxy is exposed to below room temperature conditions for extended periods of time, it may crystallize, giving it a stiff, grainy consistency. The product must be reconstituted before use by heating it to 150°F degrees. Stir until it becomes a homogeneous liquid.

Warranty

This warranty is limited to replacement of defective material and freight charges to destination only. Bonstone Materials Corp. is not responsible for consequential damages.

Maintenance

Designed for application in areas inaccessible to maintenance procedures.

Technical Service

Specification Service

  • Specifications for various applications
  • Specification writing dept. for unique applications

 

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