Technical Data Sheet - Penetrating Epoxy
Product Name
Touchstone™ Penetrating Epoxy
Manufacturer
Bonstone Materials Corporation
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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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