Truco 4102 Polyurethane Aluminum (Base Coat)

Chemical Family: Polyurethanes (PU)

Truco 4102 Polyurethane Aluminum (Base Coat) is a technologically advanced, high solids, single component, moisture cure polyurethane elastomer coating uniquely formulated for the protection of low slope roofing systems including EPDM, TPO, PVC, Mod. Bit. and BUR surfaces. Once cured, this liquid applied, moisture-curing polymer provides a durable, seamless, flexible, waterproof membrane that resists lateral movement, shear and will allow for normal expansion and contraction. Mil for mil, 4102 provides a greater adhesion and increased protection than similar polyurethane coatings. This product also offers increased resistance to moisture penetration through its lower moisture vapor permeability values. Due to its moisture-cure properties, a longer production window can be achieved during application than acrylic coatings.

Product families

Applications

Building & Construction — Building Envelope & Roofing

Waterproofing & Weatherproofing

Product Families

Ready-to-Use Products — Paints & Coatings

Protective Coatings

Other characteristics

Features: Durable, Excellent Moisture Resistance, Good Adhesion, High Solids Content, Low Gas Permeability
Product Type: 1K (1 component) Coating, Base Coat, Elastomeric Coating, Solventless & High Solids Coating; 1K (1 component) Coating; Base Coat; Elastomeric Coating; Solventless & High Solids Coating
Application Method: Brush, Roller, Spray
Compatible Substrates & Surfaces: Ethylene Propylene Diene Monomer (EPDM), Polyvinyl Chloride (PVC), Thermoplastic Polyolefin (TPO)
Markets: Building & Construction
Clean Up: Xylene
Shelf LIfe: 90 days at 40°F to 90° F
Cure: Moisture Cure
Technology: Ready-to-Use Products
Recommended Uses: 4102 was specifically developed as a protective coating (base and finish coat) for sprayed-in-place polyurethane foam roofing.. With excellent adhesion, 4102 may be used as a base coat for protection of conventional commercial/industrial surfaces such as, but not limited to: TPO and EPDM single-ply membranes, Mod. Bit., smooth BUR and the lining and sealing of interior gutter systems.
Application Methods: Brush
Roller
Spray
Handling: Avoid moisture contamination in sealed containers. 4102 is a moisture cure chemistry that is sensitive to moisture contamination and exposure to heat and direct sunlight.; Store in an interior, dry environment at temperatures between 40°f – 80°f.; Avoid container exposure to water
Ready to Use Product Features: Durable
Excellent Moisture Resistance
Good Adhesion
High Solids Content
Low Gas Permeability
Compatible Substrates and Surfaces: Ethylene Propylene Diene Monomer (EPDM)
Polyvinyl Chloride (PVC)
Thermoplastic Polyolefin (TPO)
General Surface Preparation and Application Instructions: 4102 may be applied by medium nap rollers, soft brushes or conventional airless spray equipment. Prior to product application, pressure wash all surfaces to remove all dirt and debris that may impede adhesion. Apply 4102 only to clean, dry, sound surfaces free of loose particles or other foreign matter.; Successive and/or top coats must be applied to the base or intermediate coats within 48 hours to insure proper adhesion. Apply 4102 at the minimum rate of 1.25 gallon per 100sq2 per coat. Minimum dry mil thickness shall be 12.5 dft for the base coat and 12.5 dft for the top coat.; Do not apply if ambient temperature falls below 50°f. Product application should be suspended immediately and our technical service personnel contacted if the results being obtained are less than desirable.

Technical data

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Characteristic	Value	Unit	Method
Total Solids (Weight)	79.0	%	ASTM D1644
Total Solids (Volume)	68.0	%	ASTM D2697
Weight Per Gallon	8.8 - 9.2	lbs per gallon	—
Flash Point	80.0	°F	—
Viscosity	2000 - 4000	cP	—
Elongation	300 - 400	%	—
Hardness	69.0	Shore A	—
Tensile Strength	950 - 1050	psi	—
Permeability	0.02	perm inch	—
Service Temperature	-50 to 200	°F	—
Water Absorption	2.4	%	—
Adhesion	Exceeds Tensile	—	—