Starting Point Formulation

UCAR Latex 169S
The following formulation provides a caulk, translucent in appearance, that meets the performance requirements listed in ASTM Specification C 920. The formulation should be useful for premium caulks used in both interior and exterior applications.

Translucent Caulk Formulation
Formulation Suggestion CM-310

Ingredients

Pounds

Gallons

UCAR™ Latex 169S
727.5
82.67

TRITON™ Nonionic Surfactant X-405
5.1
0.64

Nopco NXZ(1)
0.5
0.07

Protec ZZA(2)
27.3
2.58

Ethylene Glycol
8.0
0.86

Propylene Glycol
29.6
3.43

Mineral Oil(3)
21.5
3.40

Cab-O-Sil M-5(4)
24.1
1.42

Santicizer 160(5)
33.1
3.54

Silquest A-187(6)
1.8
0.20

UCAR POLYPHOBE™ 106HE
9.4
1.08

Skane MB(7)
1.1
0.13
Total:
889.0
100.00
Suppliers:
(1) Henkel
(2) MEI
(3) Shell
(4) Cabot
(5) Solutia
(6) Witco
(7) Rohm and Haas


Typical Caulk Properties

Total Solids, %
image

by volume

by weight


61.7
57.8

Plasticizer on Latex Solids, %
7

pH Value
9.0

ASTM C-834 Requirement
image

ASTM C-731, Extrudability, g/sec


17

ASTM C 920 Requirements
image

ASTM C 661, Shore A Hardness

ASTM C 679, Tack-Free Time

ASTM C 719, Cyclic Movement, +/-25%

ASTM C 793, -15° F Bend

ASTM C 794, Wet Peel Adhesion, pli
image Glass
Aluminum


15
Pass
Pass
Pass

14.4 (coh)
14.2 (coh)

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.

NOTICE: No freedom from any patent owned by Seller or others is to be inferred. Because use conditions and applicable laws may differ from one location to another and may change with time, Customer is responsible for determining whether products and the information in this document are appropriate for Customer's use and for ensuring that Customer's workplace and disposal practices are in compliance with applicable laws and other governmental enactments. Seller assumes no obligation or liability for the information in this document. NO WARRANTIES ARE GIVEN; ALL IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE ARE EXPRESSLY EXCLUDED.