Name: Titanate Adhesion Promoter for Sealants TA-22
Brand: Coatingsink
SKU: titanate-adhesion-promoter-sealant
Availability: PreOrder

Question 1

How does TA-22 improve adhesion in silicone and PU sealants?

Accepted Answer

TA-22 is a bifunctional coupling agent: the titanate centre reacts with surface hydroxyl groups on glass and metal substrates, while the allyloxy ligands compatibilise the organic polymer matrix. This dual bonding mechanism reduces interfacial energy and increases peel adhesion by approximately 2× versus untreated systems.

Question 2

At what loading level should TA-22 be incorporated, and when during mixing?

Accepted Answer

The recommended dosage is 0.5–2.0% calculated on filler weight. For best results, pre-treat the filler before compounding or add TA-22 during high-shear mixing. Post-addition should be avoided as it risks incomplete dispersion and uneven surface coverage.

Question 3

Is TA-22 compatible with moisture-cure one-component PU sealants?

Accepted Answer

Yes. Because TA-22 contains no hydrolysable alkoxy groups, it does not compete with the moisture-cure mechanism or cause premature gelation. Add it before the tin or bismuth catalyst to ensure uniform distribution in the prepolymer before cure initiation.

Flash Point	>60°C
Active Content	100%
Density (25°C)	0.98 g/ml
Viscosity (25°C)	80–150 mPa·s
Recommended Dosage	0.5–2.0% on filler weight

Titanate Adhesion Promoter for Sealants TA-22

Specifications

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