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Starting Point Formulation UCAR Latex 169S The following formulation provides a pigmented caulk meeting the requirements listed in ASTM Specification C920. The formulation can be tinted to provide colored caulks and should provide premium performance in both interior and exterior applications.
ASTM C-920 Pigmented Caulk Formulation
Formulation Suggestion CM-311 |
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Ingredients |
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UCAR™ Latex 169S |
554.4
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62.99
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Potassium Tripolyphosphate (KTPP) |
1.7
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0.08
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TRITON™ Nonionic Surfactant X-405 |
7.8
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0.84
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Daxad 30-30(1) |
1.7
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0.18
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Proxel GXL(2) |
1.3
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0.16
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Nuosept 101(3) |
1.9
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0.24
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Snowflake(4) |
468.1
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20.80
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Ti-Pure R-902(5) |
155.6
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4.67
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Santicizer 160(6) |
53.4
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5.71
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Silquest A-187(7) |
1.4
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0.16
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Propylene Glycol |
17.7
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2.05
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Cab-O-Sil M-5(8) |
4.7
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0.28
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UCAR thickener 146 |
8.2
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0.97
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Ammonium Hydroxide, 28% Aqueous Solution |
5.5
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0.87
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| Total: |
1284.4
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100.00
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| Typical Caulk Properties |
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Total Solids, % |
 |
by volume |
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by weight |
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81.0
70.6
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Pigment: Latex Binder |
1.80 |
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Pigment: Total Binder |
1.56 |
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Plasticizer on Latex Solids, % |
15.5 |
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pH Value |
8.5 |
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Brookfield Viscosity, P |
4,870 |
These results were obtained in the UCAR Emulsion Systems' central research lab, which is not certified for ASTM testing. Each producer should have his formulation tested by an independent certified lab.
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