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Styroplast Quart Kit 3.5Lbs (226951)
Styroplast coating is a brush-on encapsulant with a fast set time that is designed to provide an impact and fire resistant shell for numerous substrates including EPS/Styrofoam, insulative foams, and wood. Can be sprayed too, but spray-on polyurethane coatings require expensive spray equipment and a self contained breathing apparatus. Very little weight is added to the foam structure reducing the need for structural support. Water resistant and chemically inert once cured, it is human and animal safe. Spray in mold or as a surface coating. Superior hardness, fast cycle time, easy to apply, lightweight and short cure time. Environmentally safe- no VOC's. Superior hardness and greater moisture resistance than epoxies. Size: Quart Kit 3.5Lbs

DESCRIPTION
Styroplast is a two component, 100% solids, one part ISO to three parts poly by volume, slow cure polyurethane coating.

USAGE
Styroplast is a batch mixed coating applied most commonly by brush or trowel that has been found to have the following applications :

  • Impact resistant coating for the protection of easily deformable substrates such as EPS and insulative foams.
  • Structural plastic for use in part fabrication where only a moderate level of impact resistance is required.
  • Plastic coating which may be textured to splash protect foam, drywall, wood or other architectural substrates from many common liquids.
  • Aromatic base coat used to provide a continuous surface for stapled wood constructs.
  • Structural for foam sculptures.
  • Gap or crack filler.
  • Waterproof encapsulating material.


COVERAGE per gallon
1/32" thick, 51.3 sq/ft
1/16" thick, 25.6 sq/ft
1/8" thick, 12.8 sq/ft
1/4" thick, 6.4 sq/ft

APPLICATION Instructions

MATERIAL PREPARATION
Application in humid conditions may create gas bubbles that rise to the surface during drying. Thoroughly power mix Poly component before beginning to apply. Usually this takes a minimum of 5 minutes per 1 gallon pail with proper mixing equipment. Mix with a slow speed drill and paddle mixer. Hand mixing is fine for small quantities. Mix exact proportions of Part A and B, or the plastic will not harden correctly. An air conditioned room will deliver an ideal low humidity and slow drying environment. Move coated object to a warm area to promote faster drying.

EQUIPMENT
Ordinary paintbrush, notched trowel (preferred), or squeegee.

REACTIVITY
Potlife (brush): 15 minutes @ 76F/24.4C
Potlife (trowel): 12 minutes @ 76F/24.4C

CURE TIME
Applied coating will set in about 2 to 5 hours at 70F/21C, depending on film thickness, liquid material temperature and the substrate temperature. Generally complete cure takes from four to five days at room temperature. Product can be placed into service after one complete day of cure at 70F/21C minimum. After four days cure, the hardness is around shore 65D . Higher hardness may be attained by post heating the part to 90F 110F/32.2C 43.3C after 6 hours cure time. Prime or paint the plastic coated part the next day, or preferably later the same day. If you paint after 12 hours you will need to lightly sand the surface, or better to apply an epoxy primer for paint to stick.

MIXING
1 unit ISO: 3 units POLY by volume
1 unit ISO: 3.55 units POLY by weight

COLOR
Neutral (tan)

FIRE RESISTANCE
Styropalst is self-certified as UL-94 V0 at 60 mils thickness.

WEATHERABILITY
QUV results indicate that yellowing may be visibly discerned in neutral or off-white in 2 3 months continuous exposure. Dark colors such as black may persist for almost a year before oxidative damage may manifest itself as chalking. Physical properties, however, do not typically show significant change for even long periods of time.

CHEMICAL RESISTANCE
Hydrolytic Stability: Recovers after 10 days 150F immersion. Generally resistant to most dilute aqueous agents when cleaned off within 10 hours of contact. Very difficult to stain by virtue of its high hardness and low porosity. Constant or frequent immersion service not recommended.

TENSILE PROPERTIES
ASTM D-412
Tensile Strength: 2742 psi
Elongation: 9.7 %
Yield Strength: 2653 psi
Elastic Modulus: 17,127 psi

TEAR RESISTANCE
ASTM D-624: 156 lb/in

HARDNESS
ASTM D-2240
Shore D: 65 - 70
Depending upon post cure conditions.

IMPACT RESISTANCE
Unnotched Izod: Untested

LIQUID COMPONENT PROPERTIES
SOLIDS:
% Nonvolatile (wt): 100%
VISCOSITY:
Poly Component: Moderate - High @ 77F
ISO Component: 200 cps @ 77F
Density: (Poly Component) 12.11 lbs/gal
ISO Component: 10.3 lbs/gal

FLASH POINT
ASTM D-56 (TCC) Greater than 200F.

TOXICITY
ISO component contains polymeric isocyanate requiring fresh air supply respirator, gloves, and protective clothing during application.

SHELF LIFE
The shelf is twelve months for Part B and six months for Part A. They will last longer than that when stored properly. The ISO, when left open will suck moisture out of the humid air and cause bubbles. The container should be closed when not dispensing product.



Related Products:
EPS Expanded Polystyrene Foam Blocks



FOAM CARVING : STYROPLAST REVIEW PART ONE




FOAM CARVING : STYROPLAST REVIEW PART TWO