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Starting Point Formulation UCAR Latex 169S
The following formulation provides a good quality, pigmented caulk meeting the requirements of ASTM Specification C 834. It can be tinted to provide various colors and is intended for both interior and exterior use.
ASTM C-834 Low-Cost Sealant Formulation
Formulation Suggestion CM-312 |
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Ingredients |
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Santicizer 160(1) |
94.6
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10.12
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Ethylene Glycol |
13.5
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1.46
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CELLOSIZE™ ER-15000 Hydroxyethyl Cellulose |
2.0
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0.18
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Tamol 850(2) |
3.1
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0.32
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Kathon LX(2) |
1.3
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0.13
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UCAR™ Latex 169S |
303.4
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34.47
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Deionized Water |
72.9
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8.76
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Drikalite(3) |
937.0
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41.64
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Ti-Pure R-902(4) |
2.1
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0.24
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Silquest A-187(5) |
0.7
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0.08
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Ammonium Hydroxide, 28% Aqueous Solution |
1.0
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0.14
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Mineral Spirits |
15.5
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2.48
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| Total: |
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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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Pigment: Latex Binder |
5.0
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Pigment: Total Binder |
3.31
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Plasticizer on Latex Solids, % |
50
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pH Value |
8.1
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Brookfield Viscosity, Heliopath Spindle E, 5 rpm, P |
2,820
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ASTM C 834 Requirement |
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ASTM C 731, Extrudability, g/sec |
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ASTM C 732, Artificial Weathering |
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ASTM C 734, Low-Temperature Flexibility |
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ASTM C 736, Extension-Recovery |
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ASTM D 2202, slump, in. |
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27
Pass
Pass
75% (5% adhesion loss to aluminum)
0.05
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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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