Starting Point Formulation

UCAR Latex 163S
ASTM C 834 Compliant Low-Cost Caulk
Formulation Suggestion K-2222

Ingredients

Parts by Weight

UCAR™ Latex 163S
224.48

Santicizer 160
65.10

Ethylene Glycol
9.14

TRITON™ Nonionic Surfactant X-405
9.14

Tamol 850
2.11

Kathon LX (1.5%)
0.91

Mineral Spirits
10.55

Water
24.61

Silane A-187
1.06

Drikalite
650.94

Ti-Pure R-902
0.00

CELLOSIZE™ ER-15M Hydroxyethyl Cellulose
1.40

Ammonium Hydroxide (28%)
0.56
Total:
1000.00


Caulk Properties

Pigment-to-Binder Ratio
5.00

Pigment to Total Binder
3.33

Plasticizer, phr
50.00

ASTM C 731
image

Extrudability, g/sec


22.08

ASTM C 732
Aging Effects
image

Wash Out

Slump

Cracking

Loss of Adhesion
Discoloration



None
None
None
None
Very slight yellowing

ASTM C 734
Low Temperature Flex
image

Unexposed control

Exposed



Pass-no cracking
Pass-no cracking

ASTM C 736
Extension Recovery
image

First run

Duplicate run



85.2%, no adhesion loss
90.0%, no adhesion loss

ASTM D 2202
image

Slump


<0.2" without spacer

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