SYNTHALAT A 065

SYNTHALAT A 065 is an acrylic resin designed for cross-linking with polyisocyanates. It is supplied in three different forms: A = 50% in xylene/butyl acetate (9:1), B = 50% in butyl acetate, and C = 50% in shellsol A.

Characteristics:

• Hydroxyl value: 60-70
• Hydroxyl content: Approximately 2% (relative to non-volatile content)
• Flow time in seconds (as supplied): A: 250-300, B: 200-300, C: 220-300
• Gardner colour value (as supplied): Less than 2
• Non-volatile content: 50 +/- 1%
• Flash point: A: 24°C, B: 25°C, C: 48°C
• Density: A: 0.97 g/ml, B: 0.98 g/ml, C: 0.98 g/ml

Use: SYNTHALAT A 065 is primarily used in combination with aliphatic polyisocyanates for air- and stove-drying coatings for metals, wood, and plastics. These coatings are preferred when high coating qualities are needed but stoving is not possible due to the size or heat-sensitivity of the object being coated.

Film Properties: When combined with aliphatic polyisocyanates like "Desmodur N," SYNTHALAT A 065 produces non-yellowing films with excellent weathering resistance. These coatings dry rapidly and produce harder films compared to those based on A 045 and A 085. However, they may not achieve the same abrasion resistance as A 150.

Pigmentation: All neutral pigments and fillers are suitable for pigmentation with SYNTHALAT A 065. However, basic pigments and pigments containing soluble metallic compounds may affect curing and shorten the pot life of mixed batches.

Mixing Ratio with Polyisocyanates: The recommended mixing ratio with polyisocyanate is 100 parts by weight of SYNTHALAT A 065 to approximately 15 parts by weight of "Desmodur N 75%." Undercuring or overcuring has little influence on the film properties.

Solubility/Dilutability: SYNTHALAT A 065 is dilutable in various solvents like ethyl acetate, MEK, butyl acetate, toluene, etc. Anhydrous solvents and solvents containing no OH groups should be used.

Compatibility: SYNTHALAT A 065 exhibits high compatibility and can be combined with various other products, as listed in the compatibility table.

Shelf-life: When properly stored, SYNTHALAT A 065 has a shelf life of at least one year.