Page 188 - Handbook of Adhesion Promoters

9.4 Automotive 181

9.4 AUTOMOTIVE

The manufacturers of commercial adhesion promoters suggest the use of the following
products: Chartwell B-505.1, B-505.6, B-515.1/2H, B-516.5, and C-515.71/1.5H, Dyna-
sylan MEMO, Eastman Advantis, Eastman G-3003, G-3015, and CP 730-1, Eastman AP
(2 grades), Eastman CP (10 grades), and Sipomer PAM 200 in automotive products. These
products contain the following active components: chlorinated polyolefin, maleic anhy-
dride modified polymer, phosphoric acid ester, or amino-, diamino-, or mercapto-silanes.
1
Automotive parts made from TPO are surface-painted. Chlorinated polyolefins are
1
used to increase paint adhesion and improve paint performance. Excellent adhesive
strengths similar to characteristic of chlorinated paraffins was obtained via physical inter-
actions with polyacrylic-grafted polyolefins which have been applied in the form of aque-
2
ous dispersions. The adhesion of polyurethane coatings on polypropylene is controlled by
3
the diffusion of an adhesion promoter across the interface.
REFERENCES
1 Foster, AM; Michaels, CA; Sung, L; Lucas, J, ACS Appl. Mater. Interfaces, 1, 3, 597-603, 2009.
2 Hintze-Bruening, H; Borholte, H, Prog. Org. Coat., 40, 1-4, 49-54, 2000.
3 R e i h s , K , Thin Solid Films, 264, 2, 135-40, 1995.