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Smooth-On / Material reference
Polyurethane

Plasti-Paste™

Plasti-Paste™ is listed by Smooth-On as a polyurethane casting resin. The source reports mixed viscosity of Paste, mix ratio by weight of 41A:100B, pot life of 10 minutes. This record connects 19 reported fields with 18 manufacturer document links. Review the original technical data sheet for the applicable test conditions and processing instructions.

Technical data sheet Safety data sheet
PasteManufacturer-reported
41A:100BManufacturer-reported
10 minutesManufacturer-reported
24 hoursManufacturer-reported
70Manufacturer-reported
1.16 g/ccManufacturer-reported

Technical & safety documents

18 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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SDS
Plasti-Paste SDS | EnglishEnglish · United States & Canada
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SDS
Plasti-Paste SDS | SpanishSpanish · United States & Canada
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SDS
Plasti-Paste SDS | FrenchFrench · United States & Canada
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SDS
Plasti-Paste SDS | EnglishEnglish · South & Central America
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SDS
Plasti-Paste SDS | SpanishSpanish · South & Central America
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SDS
Plasti-Paste SDS | EnglishEnglish · United Kingdom & European Union
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SDS
Plasti-Paste SDS | SpanishSpanish · United Kingdom & European Union
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SDS
Plasti-Paste SDS | FrenchFrench · United Kingdom & European Union
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SDS
Plasti-Paste SDS | GermanGerman · United Kingdom & European Union
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SDS
Plasti-Paste SDS | ItalianItalian · United Kingdom & European Union
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SDS
Plasti-Paste SDS | GreekGreek · United Kingdom & European Union
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SDS
Plasti-Paste SDS | DutchDutch · United Kingdom & European Union
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SDS
Plasti-Paste SDS | PolishPolish · United Kingdom & European Union
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SDS
Plasti-Paste SDS | CzechCzech · United Kingdom & European Union
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SDS
Plasti-Paste SDS | HungarianHungarian · United Kingdom & European Union
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SDS
Plasti-Paste SDS | NorwegianNorwegian · United Kingdom & European Union
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SDS
Plasti-Paste SDS | EnglishEnglish · Australia & New Zealand
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Reported specifications

19 fields
Material and processing data
PropertyReported valueEvidence
Mixed ViscosityPasteManufacturer table
ColorOff WhiteManufacturer table
Mix Ratio By Volume1A:3BManufacturer table
Mix Ratio By Weight41A:100BManufacturer table
Pot Life10 minutesManufacturer table
Handling Time90 minutesManufacturer table
Cure Time24 hoursManufacturer table
Shore D Hardness70Manufacturer table
Specific Gravity1.16 g/ccManufacturer table
Specific Volume23.9 cu. in./lb.Manufacturer table
Compressive Strength3,420 psiManufacturer table
Elongation @ Break1.5 %Manufacturer table
Flexural Modulus150,000 psiManufacturer table
Flexural Strength3,410 psiManufacturer table
Heat Deflection Temp130 °FManufacturer table
Shrinkage0.005 in./in.Manufacturer table
Tensile Modulus168,100 psiManufacturer table
Ultimate Tensile1,600 psiManufacturer table
Compressive Modulus48,800 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 41A:100B. 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™ 202Smooth-OnPolyurethane600 cpsMixed Viscosity3 linked
Crystal Clear™ 204Smooth-OnPolyurethane600 cpsMixed Viscosity3 linked
Related records are browsing suggestions, not validated substitutes.