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Smooth-On / Material reference
Polyurethane

Crystal Clear™ 202

Crystal Clear™ 202 is listed by Smooth-On as a polyurethane casting resin. The source reports mixed viscosity of 600 cps, mix ratio by weight of 100A:90B, pot life of 9 minutes. This record connects 19 reported fields with 3 manufacturer document links. Review the original technical data sheet for the applicable test conditions and processing instructions.

Technical data sheet Safety data sheet
600 cpsManufacturer-reported
100A:90BManufacturer-reported
9 minutesManufacturer-reported
90 minutesManufacturer-reported
80Manufacturer-reported
1.036 g/ccManufacturer-reported

Technical & safety documents

3 links
Files open on the manufacturer's document host. Region and language follow the source listing; confirm the revision inside the file.
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TDS
Technical BulletinEnglish · Not specified
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TDS
UV ASTM CertificationEnglish · Not specified
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SDS
Crystal Clear 202 SDS | EnglishEnglish · United States & Canada
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Reported specifications

19 fields
Material and processing data
PropertyReported valueEvidence
Mixed Viscosity600 cpsManufacturer table
ColorClearManufacturer table
Mix Ratio By Weight100A:90BManufacturer table
Pot Life9 minutesManufacturer table
Cure Time90 minutesManufacturer table
Shore D Hardness80Manufacturer table
Specific Gravity1.036 g/ccManufacturer table
Specific Volume26.7 cu. in./lb.Manufacturer table
Compressive Strength4,200 psiManufacturer table
Elongation @ Break10 %Manufacturer table
Flexural Modulus183,200 psiManufacturer table
Flexural Strength5,390 psiManufacturer table
Heat Deflection Temp120 °FManufacturer table
Index of Refraction at 20°C1.49888Manufacturer table
Index of Refraction at 25°C1.49893Manufacturer table
Shrinkage0.0125 in./in.Manufacturer table
Tensile Modulus86,240 psiManufacturer table
Tensile Strength3,500 psiManufacturer table
Compressive Modulus44,000 psiManufacturer table
Reported values are not independent test results. Original units and table wording are preserved. Extracted TDS rows can depend on the grade, component and source table headings; use the linked page to verify that context. Test methods, sample preparation and cure schedules may differ; consult the original TDS before making a performance comparison.

Selection & processing checks

Distinguish rigid casting plastics, elastomeric rubbers and foams. Their density, hardness scales and processing requirements are not interchangeable.

  • Is this a solid material or an expanding foam?
  • Which hardness scale and cure conditions are reported?
  • What moisture-control and preparation steps does the manufacturer require?
  • Confirm the complete product designation, including any hardener, color or formulation suffix.
  • Read the current SDS for handling, protective equipment, storage and disposal information.

The reported weight ratio for this record is 100A:90B. A weight ratio must not be used as a volume ratio without the appropriate density information.

Missing properties are not estimated. Similar values or shared application labels do not establish a drop-in replacement.

Other materials in this family

View collection
Material / manufacturerFamilyKey specificationDocumentsAdd to comparison
Clear Flex™ 95Smooth-OnPolyurethane250 cpsMixed Viscosity2 linked
Crystal Clear™ 200Smooth-OnPolyurethane600 cpsMixed Viscosity3 linked
Crystal Clear™ 204Smooth-OnPolyurethane600 cpsMixed Viscosity3 linked
Crystal Clear™ 206Smooth-OnPolyurethane600 cpsMixed Viscosity3 linked
Related records are browsing suggestions, not validated substitutes.