SYNTHALAT A 090

SYNTHALAT-A 090 is a polyisocyanate-curing acrylic resin primarily used in combination with cycloaliphatic polyisocyanate adducts for air- and oven-drying two-pack coatings. Here's a breakdown of its characteristics and properties:

Characteristics:

• Supplied as: 60% in xylene/butyl acetate (1:1)
• Application: Used for coatings on plastics, particularly ABS copolymers
• Thinnable with white spirit at ratios of up to 1 : 0.7 without causing swelling
• Film properties: Provides finishes with good adhesion, flexibility, and weather resistance when combined with cycloaliphatic polyisocyanate adducts

Properties:

• Hydroxyl value: 80 - 100
• Hydroxyl content: Approximately 2.7% (relative to non-volatile content)
• Viscosity (as supplied): 1,000 – 1,600 mPas
• Gardner colour value: < 2
• Non-volatile content: 60 +/- 1%
• Flash point: Approximately 25°C
• Density: 0.99 g/ml

Pigmentation:

• High pigment absorption and excellent pigment wetting properties
• Suitable for use with neutral pigments and fillers; however, basic pigments and pigments containing soluble metal compounds may affect curing and shorten pot life

Mixing ratio with polyisocyanate:

• Based on an equivalent reaction of the reactive groups (NCO : OH = 1 : 1)

Solubility/Dilutability:

• Thinnable with various solvents including ethyl acetate, MEK, butyl acetate, xylene, toluene, and others
• White spirit can be used for thinning, with limited thinnability

Compatibility:

• Compatible with various compounds including Synthalat A 045, A 055, A 085, NC chips E 510, Vinylite VAGH, Vinylite VROH, CAB 551-001, and others
• Compatible with IPDI adduct T 1890 S

Storage:

• Can be stored under appropriate conditions for at least one year

Overall, SYNTHALAT-A 090 is suitable for applications requiring durable coatings on plastics, offering good adhesion, flexibility, and weather resistance.