Technical Data Sheet - Polyester Knifegrade
Product Name
Touchstone™ Knife Grade Polyester
Manufacturer
Bonstone Materials Corporation
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Product Description
A catalyzed, interior grade, clear, knife grade, peroxide-cure unsaturated
polyester.
Basic Uses
- Stone patching and cavity filling
- Laminating granite & marble
- Countertop seaming
- Can be polished
Limitations
Use on dry stone. Use on stone that is free of any oil, grease, or coatings.
Technical Data
Cured Properties
| Tensile Break Strength: |
4,653 psi |
| Tensile Modulus: |
356,947 psi |
| Tensile Elongation at Break: |
1.42 % |
| Flexural Break Strength: |
9,754 psi |
| Flexural Modulus: |
291,522 psi |
| Compressive Yield Strength: |
6,536 psi |
| Compressive Modulus: |
266,113 psi |
| Shore D Hardness: |
87 |
| Shear Adhesive Strength, granite-to-granite: |
1917 psi |
Mixed Properties
| Gel Time @ 75°F |
6 minutes |
| Tack Free time @ 75°F |
12 minutes |
Installation
General Instructions
Surface Preparation
and Use
Use gloves, wear eye protection, and avoid skin contact. When grinding
cured patches or non-structural joints, wear a dust mask. Substrates
must be completely dry and dust-free. Mix only the amount of Polyester
which can be used in 10 minutes. Avoid stressing joint before complete
cure of Polyester. Mask areas which must be kept free of Polyester. Clean
tools with toluene or xylene. (Use caution, these solvents are flammable.
Ensure local ventilation.)
Mixing instructions:
All materials should be at or above 45°F. Combine the two ingredients
at the following weight ratio: three parts hardener to 100 parts
Polyester. Mix thoroughly.
Prepare only as much material as can be immediately used.
Temperature dependency:
Temperature will affect the working properties of the material. Approximately
every 10°F results in doubling the speed of cure. Therefore, at 85°F set
time is cut in half, at 65°F the set time is doubled.
Coverage:
Approximately
30 square feet per gallon when applied at thickness of 50 mils (1/16th
of an inch).
Availability
Packaging and Storage
Touchstone Knife Grade Polyester is available in quarts and gallons.
Polyester has a shelf life of six months at 70°F in unopened containers.
Under no circumstances should the hardener be allowed to get above
100°F.
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 interior application in areas inaccessible to maintenance
procedures.
Technical Service
Specification Service
- specifications for various applications
- specification writing dept.
for unique application
Lab Service
- spectrophotometric color matching
This information is furnished without
warranty, representation, inducement, or license of any kind, except
that is is accurate to the best
of Bonstone Material
Corporation's (BMC) knowledge or obtained from sources believed
by BMC to be accurate, and BMC does not assume any legal responsibility
for use
of reliance
upon same. User must determine if the product, process, or
information described is suitable to the intended application. Before
using any
chemical, read
its label and Material Safety Data Sheet.
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