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Smooth-On / Material reference
Silicone

SORTA-Clear™ 18

SORTA-Clear™ 18 is listed by Smooth-On as a platinum-cure silicone rubber. The source reports mixed viscosity of 21,000 cps, mix ratio by weight of 100A:10B, pot life of 60 minutes. This record connects 16 reported fields with 21 manufacturer document links. Review the original technical data sheet for the applicable test conditions and processing instructions.

Technical data sheet Safety data sheet
21,000 cpsManufacturer-reported
100A:10BManufacturer-reported
60 minutesManufacturer-reported
24 hoursManufacturer-reported
18Manufacturer-reported
1.08 g/ccManufacturer-reported

Technical & safety documents

21 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
Ficha Técnica en EspañolSpanish · Not specified
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TDS
Food Safe Technical BulletinEnglish · Not specified
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TDS
Skin Safety CertificationEnglish · Not specified
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SDS
SORTA-Clear 18 SDS | EnglishEnglish · United States & Canada
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SDS
SORTA-Clear 18 SDS | SpanishSpanish · United States & Canada
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SDS
SORTA-Clear 18 SDS | FrenchFrench · United States & Canada
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SDS
SORTA-Clear 18 SDS | EnglishEnglish · South & Central America
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SDS
SORTA-Clear 18 SDS | SpanishSpanish · South & Central America
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SDS
SORTA-Clear 18 SDS | EnglishEnglish · United Kingdom & European Union
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SDS
SORTA-Clear 18 SDS | SpanishSpanish · United Kingdom & European Union
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SDS
SORTA-Clear 18 SDS | FrenchFrench · United Kingdom & European Union
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SDS
SORTA-Clear 18 SDS | GermanGerman · United Kingdom & European Union
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SDS
SORTA-Clear 18 SDS | ItalianItalian · United Kingdom & European Union
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SDS
SORTA-Clear 18 SDS | GreekGreek · United Kingdom & European Union
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SDS
SORTA-Clear 18 SDS | DutchDutch · United Kingdom & European Union
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SDS
SORTA-Clear 18 SDS | PolishPolish · United Kingdom & European Union
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SDS
SORTA-Clear 18 SDS | CzechCzech · United Kingdom & European Union
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SDS
SORTA-Clear 18 SDS | HungarianHungarian · United Kingdom & European Union
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SDS
SORTA-Clear 18 SDS | NorwegianNorwegian · United Kingdom & European Union
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SDS
SORTA-Clear 18 SDS | EnglishEnglish · Australia & New Zealand
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Reported specifications

16 fields
Material and processing data
PropertyReported valueEvidence
Mixed Viscosity21,000 cpsManufacturer table
CatalystPlatinumManufacturer table
ColorWater Clear TranslucentManufacturer table
Mix Ratio By Weight100A:10BManufacturer table
Pot Life60 minutesManufacturer table
Cure Time24 hoursManufacturer table
Shore A Hardness18Manufacturer table
Specific Gravity1.08 g/ccManufacturer table
Specific Volume25.6 cu. in./lb.Manufacturer table
Die B Tear Strength80 pliManufacturer table
Elongation @ Break545 %Manufacturer table
100% Modulus35 psiManufacturer table
Shrinkage<.001 in./in.Manufacturer table
Tensile Strength425 psiManufacturer table
Useful Temperature (min)-65 °FManufacturer table
Useful Temperature (max)450 °FManufacturer 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

Check the exact cure chemistry and intended substrate. Silicone rubber and silicone resin are distinct material types; this collection includes elastomers.

  • Is the material addition-cure, condensation-cure or a one-part system?
  • Which substrates and cure-inhibition precautions are listed?
  • Are the reported tear strength and elongation measured under comparable conditions?
  • 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:10B. 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
20-1615Epoxies, Etc.Silicone6,000Viscosity, 25C, cps, mixed3 linked
PlatSil® 73-60 Silicone RubberPolytekSilicone40,000 cPMixed Viscosity3 linked
PlatSil® 73-25 Silicone RubberPolytekSilicone6,000 cPMixed Viscosity2 linked
PlatSil® Gel-10PolytekSilicone15,000 cPMixed Viscosity2 linked
Related records are browsing suggestions, not validated substitutes.