BJB Enterprises WC-565-AB

BJB Enterprises WC-565-AB is a two-part, clear, colorless aliphatic-based polyurethane elastomer. It is recommended for use whenever a flexible, permanently transparent elastomer is required. Itis UV light and oxidation resistant and can be easily tinted or pigmented to clean bright colors.WC-565-AB does not contain MOCA, TDI, or MDA. In addition to being an excellent castable product, it also functions well as an adhesive for bonding various substrates.

Polymer Name: Polyurethane Thermoset Elastomer (unspecified)

Processing Methods: Casting

Features: Good Flexibility, Oxidation Resistant, Resistance to UV lights, Solventless

Knowde Enhanced TDS

Identification & Functionality

Chemical Family
Technologies

Features & Benefits

Applications & Uses

Plastics & Elastomers Processing Methods
Appliation Details

CURE SCHEDULE/HEAT CURING:

Most of the physical properties can be achieved in 5-7 days at 77ºF (25ºC).You may use your own post-cure schedule but the physical properties may vary from BJB’s cure schedule of 1-3 hours at 77ºF (25ºC) followed by 16 hours at 160ºF (71°C). Do not exceed curingtemperatures of 200ºF (93ºC).If you are using heat to acceleratethe demold time, allow the part to cool down to ambient temperature before demolding.

Properties

Physical Form
Appearance
Clear
Physical Properties
ValueUnitsTest Method / Conditions
Hardness60 - 70Shore AASTM D2240-04e1
Density1.02g/ccASTM D792-00
Cubic26.54Inches per Pound
Tensile Strength753psiASTM D412-98a(2002)e1
Elongation200%ASTM D412-98a(2002)e1
Tear Strength59pliASTM D624-00e1
Shrinkage Linear0.004in/inASTM D2566 (1” depth)
Dielectric Constant (1 MHz)3.483ASTM D150-87
Dissipation Factor (1 MHz)0.061ASTM D150-87
Typical Properties
ValueUnitsTest Method / Conditions
Mix Ratio by weight (Part A)100
Mix Ratio by volume (Part A)95
Specific Gravity (77°F (25°C), Part A)1.07
Color (Part A)Colorless
Viscosity (77°F (25°C), Part A)4725Brookfield
Mixed Viscosity (77°F (25°C))1100cpsBrookfield
Work Time (100g mass, 77°F (25°C))15 minutes
Gel Time20 minutes
Demold Time (77°F (25°C))6 - 8 hours
Mix Ratio by weight (Part B)100
Mix Ratio by volume (Part B)100
Specific Gravity (77°F (25°C), Part B)1.02
Color (Part B)Colorless
Viscosity (77°F (25°C), Part B)310

Safety & Health

Safty Precaution

Avoid contact with skin using protective gloves and protective clothing. Repeated or prolonged contact on the skin may causean allergic reaction.Eye protection is extremely important. Always use approved safety glasses or goggles when handling this product. Use in well-ventilated areas. Avoid breathing vapors. If exposures cannot be kept at a minimum, a respirator may be necessary in additionto ventilation. The use of a positive pressure air supplied respirator is mandatory when airborne isocyanate concentrations are “not known” or exceeds OSHA TWA of 0.005 ppm. Air purifying, organic cartridge type respirators are not generally recommendedto use when handling this material without implementation of an end of life service program. Observe OSHA regulations for respirator use (29 CFR 1910.134). Employers are responsible for selecting the correct respirator for each situation.

Packaging & Availability

Packaging Type

Storage & Handling

Storage

Store at ambient temperatures, 65-80ºF (18-27ºC). Unopenedcontainers will have a shelf life of 6 months from date of shipment when properly stored at recommended temperatures. Purge opened containers with dry nitrogen before re-sealing.