Independent materials reference Manufacturer-linked sourcesResins · Elastomers · Technical documents
Polytek / Material reference
Silicone

PlatSil® 71-25 Silicone Rubber

PlatSil® 71-25 Silicone Rubber is listed by Polytek as a silicone rubber. The source reports mixed viscosity of 3,500 cP, mix ratio by weight of 1A:1B. This record connects 13 reported fields with 2 manufacturer document links. Review the original technical data sheet for the applicable test conditions and processing instructions.

Technical data sheet Safety data sheet
3,500 cPManufacturer-reported
1A:1BManufacturer-reported
1.1Manufacturer-reported
418 psiManufacturer-reported

Technical & safety documents

2 links
Files open on the manufacturer's document host. Region and language follow the source listing; confirm the revision inside the file.
Open original PDF
TDS
PlatSil® 71-25 Silicone Rubber — Technical BulletinEnglish · Not specified
Open file
SDS
PlatSil® 71-25 Silicone Rubber — Safety Data SheetEnglish · Not specified
Open file

Reported specifications

13 fields
Material and processing data
PropertyReported valueEvidence
Mix Ratio by Weight1A:1BManufacturer table
Shore HardnessA25Manufacturer table
Pour Time35 min.Manufacturer table
Demold Time16 hr.Manufacturer table
Cured ColorMilky WhiteManufacturer table
Mixed Viscosity3,500 cPManufacturer table
Specific Volume25 in³/lbManufacturer table
Specific Gravity1.1Manufacturer table
Elongation343 %Manufacturer table
Tensile Strength418 psiManufacturer table
Die B Tear Strength137 pliManufacturer table
Die T Tear Strength33 pliManufacturer table
Cure InhibitionContamination from sulfur (e.g., sulfur-based clay), amines, tin compounds, cured polyester resin, some paints and some silicone rubbers may inhibit surface cure of platinum-cured rubbers.Manufacturer 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 1A:1B. 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
Ecoflex™ GELSmooth-OnSilicone9,300 cpsMixed Viscosity19 linked
Encapso™ KSmooth-OnSilicone150 cpsMixed Viscosity18 linked
EZ-Spray™ 35Smooth-OnSiliconeSprayableMixed Viscosity2 linked
Rubber Glass™Smooth-OnSilicone150 cpsMixed Viscosity18 linked
Related records are browsing suggestions, not validated substitutes.