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RAKU® TOOL PH-3978

Chemical Family
Polyurethanes (PU)

RAKU® TOOL PH-3978 has the following properties: unfilled, very low viscosity, high fill rate capability, good cure, very high strength, and good temperature resistance.

Product families

Applications

Industrial — Chemical & Industrial Manufacturing
  • Other Industrial Applications

Product Families

Plastics — Thermoset Resins
  • Polyurethanes

Other characteristics

Brand
RAKU
End Uses
Industrial Castings
Polymer Name
Polyurethane (unspecified)
Markets
Industrial
Storage

Original containers should be kept tightly sealed and stored at ambient temperatures 59-86°F (15°C to 30°C). If properly stored the products have the shelf-life indicated on the product label. Partly used containers should always be sealed appropriately and used up as soon as possible.

PACKAGING
6 x 0.26 gallons / (6x1 kg )
Processing

The processing and material temperature should be between 68-77°F (20-25°C). The A component needs to be stirred well before use as some fillers might be prone to sedimentation. The fillers should first be mixed into the individual A and B components in a way so that the two components have about the same viscosity. This allows for easier and better mixing of the two components afterwards. With a bit of practice it is possible to mix small quantities of unfilled A and B and then add the filler without the pot life being too short for the casting process.

Technology
Plastics
Material Features
Fast Curing
Handling Precautions

Good workplace ventilation is to be ensured during processing. At the same time, the employer's liability insurance association's industrial hygiene safety regulations regarding the handling of reaction resins and their hardeners are to be observed.

Plastics and Elastomers End Uses
Industrial Castings
Plastics and Elastomers Functions
Resin

Technical data

Table 1 of 1

10 rows
CharacteristicValueUnitMethod
AspectWhite—visual
Demold Time (RT)0.5-1h—
Densityca. 62.4 - 68.7 (1.0-1.1)Ibift3 (g/cm3)ASTM D-792
Densityca. 68.7 (1.10)Ib/ft3 (g/cm3)ASTM D-792
max. Layer thickness0.79/20infmm—
Mix Ratio100.0pb weight—
Mix Ratio86.0pb volume—
Pot Life (77°F) (25°C)2021-04-05min.ASTM D-2393
Shore HardnessD 70-75—ASTM D-2240
Viscosity (77°F) (25°C)90-100cPASTM D-2393

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