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Smooth-On / Material reference
Polyurethane

TASK™ 18

TASK™ 18 is listed by Smooth-On as a polyurethane casting resin. The source reports mixed viscosity of 4,400 cps, mix ratio by weight of 26A:100B, pot life of 20 minutes. This record connects 17 reported fields with 15 manufacturer document links. Review the original technical data sheet for the applicable test conditions and processing instructions.

Technical data sheet Safety data sheet
4,400 cpsManufacturer-reported
26A:100BManufacturer-reported
20 minutesManufacturer-reported
16 hoursManufacturer-reported
88Manufacturer-reported
1.57 g/ccManufacturer-reported

Technical & safety documents

15 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
TASK 18 SDS | EnglishEnglish · United States & Canada
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SDS
TASK 18 SDS | SpanishSpanish · United States & Canada
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SDS
TASK 18 SDS | FrenchFrench · United States & Canada
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SDS
TASK 18 SDS | EnglishEnglish · United Kingdom & European Union
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SDS
TASK 18 SDS | SpanishSpanish · United Kingdom & European Union
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SDS
TASK 18 SDS | FrenchFrench · United Kingdom & European Union
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SDS
TASK 18 SDS | GermanGerman · United Kingdom & European Union
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SDS
TASK 18 SDS | ItalianItalian · United Kingdom & European Union
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SDS
TASK 18 SDS | GreekGreek · United Kingdom & European Union
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SDS
TASK 18 SDS | DutchDutch · United Kingdom & European Union
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SDS
TASK 18 SDS | PolishPolish · United Kingdom & European Union
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SDS
TASK 18 SDS | CzechCzech · United Kingdom & European Union
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SDS
TASK 18 SDS | HungarianHungarian · United Kingdom & European Union
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SDS
TASK 18 SDS | NorwegianNorwegian · United Kingdom & European Union
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Reported specifications

17 fields
Material and processing data
PropertyReported valueEvidence
Mixed Viscosity4,400 cpsManufacturer table
ColorMetal GrayManufacturer table
Mix Ratio By Weight26A:100BManufacturer table
Pot Life20 minutesManufacturer table
Cure Time16 hoursManufacturer table
Shore D Hardness88Manufacturer table
Specific Gravity1.57 g/ccManufacturer table
Specific Volume17.6 cu. in./lb.Manufacturer table
Compressive Strength8,420 psiManufacturer table
Elongation @ Break1 %Manufacturer table
Flexural Modulus86,000 psiManufacturer table
Flexural Strength10,700 psiManufacturer table
Heat Deflection Temp149 °FManufacturer table
Shrinkage0.0006 in./in.Manufacturer table
Tensile Modulus514,000 psiManufacturer table
Tensile Strength3,250 psiManufacturer table
Compressive Modulus97,300 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 26A: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.

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Smooth-Cast™ 385Smooth-OnPolyurethane3,000 cpsMixed Viscosity2 linked
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