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Tiangang® T-68 / T-69

light stabilizer with Improved Acid Resistance

Product Description
Tiangang® T-68/T-69 are highly effective UV Light Stabilizers, especially suitable for a variety of polymer resins, preventing polymer from UV induced degradation, for example loss in mechanical properties.
This product has improved resistance against sulfur, chloride, and other acidic substances, which would cause traditional light stabilizers to fail.

Typical properties

  Appearance Melting Point,
Weight Loss, oC
(5% weight loss, 20 oC/min, N2)
Tiangang® T-68 Yellow to brownish powder 80 – 100 > 300
Tiangang® T-69 90 – 130 > 300

Recommended Dosage

Tiangang® T-68 / T-69 Usually 0.1-0.8% should effectively improve weatherability of the plastics articles, however, exact dosage must be determined after experiments. You are welcome to contact our technical representative for assistance in evaluation of performance of certain formulae.

Safety and Handling

Tiangang® T-68 / T-69 The use of proper protective equipment is recommended. Excess exposure to the product should be avoided. Wash thoroughly after handling. Store the product in a cool, dry, well-ventilated area away from incompatible materials.


Tiangang® T-68 / T-69 20 or 25KG carton box with PE inner bag