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Moldmaking & Prototype Molding

ELASTOSIL® RTV-2 silicone elastomers for mold making yield highly accurate reproductions, exhibit good release properties and are highly resistant to common reproduction materials. Applications of ELASTOSIL® M and RT range from arts and crafts to industrial mass production.

Industrial Printing

Paper, Pulp & Printing - Industrial Printing

WACKER offers a high-quality product range of ELASTOSIL® RT silicone rubber grades for pad printing processes of all types. Anti-static variants for printing on sensitive materials and additional ELASTOSIL® systems round off our portfolio of high-performance products.

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Product Recommendations

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Products
Technical data
Product properties
Viscosity, dynamic Tear strength Hardness Shore A Hardness Shore 00 Tensile strength Elongation at break Resistance Surface property Regulation Product Rheology Crosslinking Property Vulcanizate
CENUSIL® M 810 A/B 3000 mPa·s[1] 3000 mPa·s[1] 15 N/mm[10] 15 N/mm[10] 10[13] 10[13] - - 3.5 N/mm²[15] 3.5 N/mm²[15] 600 %[18] 600 %[18] - - - Flowable No chemical shrinkage, Two-component, Addition Curing, Fast curing at room temperature -
CENUSIL® M 820 A/B 6000 mPa·s[2] 6000 mPa·s[2] - - 20[13] 20[13] - - 4 N/mm²[15] 4 N/mm²[15] 500 %[18] 500 %[18] - - - Flowable No chemical shrinkage, Two-component, Addition Curing, Fast curing at room temperature -
CENUSIL® M 825 A/B 8000 mPa·s[3] 8000 mPa·s[3] 20 N/mm[10] 20 N/mm[10] 25[13] 25[13] - - 5 N/mm²[15] 5 N/mm²[15] 450 %[18] 450 %[18] - - - Flowable No chemical shrinkage, Two-component, Addition Curing, Fast curing at room temperature -
CENUSIL® M 830 A/B 8000 mPa·s[3] 8000 mPa·s[3] > 20 N/mm[10] > 20 N/mm[10] 26[13] 26[13] - - 5 N/mm²[15] 5 N/mm²[15] 500 %[18] 500 %[18] Resistance against concrete - Food-contact Flowable No chemical shrinkage, Two-component, Addition Curing -
ELASTOSIL® C 1200 A/B 20000 mPa·s[3] 20000 mPa·s[3] 25 N/mm[10] 25 N/mm[10] 25[13] 25[13] - - 5 N/mm²[15] 5 N/mm²[15] 500 %[18] 500 %[18] Resistance against polyester, Resistance against epoxy resins - - Flowable No chemical shrinkage, Two-component, Addition Curing, Fast curing at room temperature -
ELASTOSIL® CAT VARIO - - - - - - - - - - - - - - - - - -
ELASTOSIL® CAT VARIO-F - - - - - - - - - - - - - - - - - -
ELASTOSIL® FX 10 A/B 6000 mPa·s[3] 6000 mPa·s[3] > 20 N/mm[11] > 20 N/mm[11] 10[13] 10[13] - - 4.5 N/mm²[15] 4.5 N/mm²[15] 950 %[18] 950 %[18] - - Suitable for skin contact Flowable No chemical shrinkage, Two-component, Addition Curing, Fast curing at room temperature -
ELASTOSIL® FX 20 A/B 5000 mPa·s[4] 5000 mPa·s[4] 25 N/mm[11] 25 N/mm[11] 20[13] 20[13] - - > 6 N/mm²[15] > 6 N/mm²[15] > 750 %[18] > 750 %[18] - - Suitable for skin contact Flowable No chemical shrinkage, Two-component, Addition Curing, Fast curing at room temperature -
ELASTOSIL® FX 28 A/B 10000 mPa·s[4] 10000 mPa·s[4] 28 N/mm[10] 28 N/mm[10] 28[13] 28[13] - - 6 N/mm²[15] 6 N/mm²[15] 500 %[18] 500 %[18] - - Suitable for skin contact Flowable No chemical shrinkage, Two-component, Addition Curing, Fast curing at room temperature -
ELASTOSIL® FX Gel 30 A/B 4000 mPa·s[4] 4000 mPa·s[4] 5.5 N/mm[11] 5.5 N/mm[11] - - 30[20] 30[20] > 1.5 N/mm²[15] > 1.5 N/mm²[15] > 900 %[18] > 900 %[18] - - Suitable for skin contact Flowable No chemical shrinkage, Two-component, Addition Curing, Fast curing at room temperature -
ELASTOSIL® M 1470 - - > 10 N/mm[10] > 10 N/mm[10] 45[14] 45[14] - - 4.5 N/mm²[16] 4.5 N/mm²[16] 230 %[19] 230 %[19] Heat resistant - - Kneadable Condensation-curing, Two-component -
ELASTOSIL® M 4115 A/B 2500 mPa·s[3] 2500 mPa·s[3] 5 N/mm[10] 5 N/mm[10] 17[13] 17[13] - - 3 N/mm²[15] 3 N/mm²[15] 400 %[18] 400 %[18] - - - Flowable No chemical shrinkage, Two-component, Addition Curing, Fast curing at room temperature -
ELASTOSIL® M 4125 F A/B 6000 mPa·s[3] 6000 mPa·s[3] - - 28[14] 28[14] - - 5.0[17] 5.0[17] 500[19] 500[19] - - Food-contact Flowable No chemical shrinkage, Two-component, Addition Curing, Fast curing at room temperature -
ELASTOSIL® M 4370 A/B 350 mPa·s[5] 350 mPa·s[5] > 4 N/mm[10] > 4 N/mm[10] 55[13] 55[13] - - 3.0 N/mm²[16] 3.0 N/mm²[16] 130 %[19] 130 %[19] Heat resistant, Resistance against casting resins, Resistance against low melting metals and metal alloys - - Flowable Two-component, Addition Curing -
ELASTOSIL® M 4400 30000 mPa·s[6] 30000 mPa·s[6] > 3 N/mm[10] > 3 N/mm[10] 23[14] 23[14] - - 2 N/mm²[16] 2 N/mm²[16] 250 %[19] 250 %[19] - - - Flowable Condensation-curing, Two-component -
ELASTOSIL® M 4440 25000 mPa·s[6] 25000 mPa·s[6] 4.5 N/mm[10] 4.5 N/mm[10] 37[14] 37[14] - - 2.5 N/mm²[16] 2.5 N/mm²[16] 220 %[19] 220 %[19] Resistance against polyester, Resistance against PU - - Flowable Condensation-curing, Two-component -
ELASTOSIL® M 4470 15000 mPa·s[4] 15000 mPa·s[4] > 4 N/mm[10] > 4 N/mm[10] 60[14] 60[14] - - 4.5 N/mm²[16] 4.5 N/mm²[16] 120 %[19] 120 %[19] Heat resistant - - Flowable Condensation-curing, Two-component Thermally conductive
ELASTOSIL® M 4503 40000 mPa·s[4] 40000 mPa·s[4] > 20 N/mm[10] > 20 N/mm[10] 25[13] 25[13] - - 20 N/mm²[16] 20 N/mm²[16] 350 %[19] 350 %[19] - - - Flowable Condensation-curing, Two-component -
ELASTOSIL® M 4511 25000 mPa·s[6] 25000 mPa·s[6] > 18 N/mm[10] > 18 N/mm[10] 12[14] 12[14] - - 3.5 N/mm²[16] 3.5 N/mm²[16] 600 %[19] 600 %[19] Resistance against polyester, Resistance against PU - - Flowable Condensation-curing, Two-component -
ELASTOSIL® M 4512 30000 mPa·s[6] 30000 mPa·s[6] > 24 N/mm[10] > 24 N/mm[10] 20[14] 20[14] - - 3.5 N/mm²[16] 3.5 N/mm²[16] 500 %[19] 500 %[19] Resistance against polyester, Resistance against PU - - Flowable Condensation-curing, Two-component -
ELASTOSIL® M 4514 35000 mPa·s[4] 35000 mPa·s[4] > 25 N/mm[10] > 25 N/mm[10] 25[13] 25[13] - - 4.5 N/mm²[16] 4.5 N/mm²[16] 450 %[19] 450 %[19] Resistance against polyester, Resistance against PU - - Flowable Condensation-curing, Two-component -
ELASTOSIL® M 4541 40000 mPa·s[4] 40000 mPa·s[4] > 30 N/mm[10] > 30 N/mm[10] 32[14] 32[14] - - 5 N/mm²[16] 5 N/mm²[16] 400 %[19] 400 %[19] Resistance against polyester, Resistance against PU - - Flowable Condensation-curing, Two-component -
ELASTOSIL® M 4600 A/B 20000 mPa·s[4] 20000 mPa·s[4] > 20 N/mm[10] > 20 N/mm[10] 20[14] 20[14] - - 7[16] 7[16] 800 %[19] 800 %[19] - - Food-contact Flowable No chemical shrinkage, Two-component, Addition Curing -
ELASTOSIL® M 4601 A/B 15000 mPa·s[4] 15000 mPa·s[4] > 30 N/mm[10] > 30 N/mm[10] 28[14] 28[14] - - 6.5 N/mm²[16] 6.5 N/mm²[16] 700 %[19] 700 %[19] Resistance against casting resins - Food-contact Flowable No chemical shrinkage, Two-component, Addition Curing -
ELASTOSIL® M 4630 A/B 15000 mPa·s[4] 15000 mPa·s[4] > 30 N/mm[10] > 30 N/mm[10] 28[14] 28[14] - - 6.5 N/mm²[16] 6.5 N/mm²[16] 700 %[19] 700 %[19] Resistance against concrete, Resistance against casting resins - Food-contact Flowable No chemical shrinkage, Two-component, Addition Curing -
ELASTOSIL® M 4635 A/B 20000 mPa·s[4] 20000 mPa·s[4] > 30 N/mm[10] > 30 N/mm[10] 37[14] 37[14] - - 7 N/mm²[16] 7 N/mm²[16] 480 %[19] 480 %[19] Resistance against concrete, Resistance against casting resins - Food-contact Flowable No chemical shrinkage, Two-component, Addition Curing -
ELASTOSIL® M 4641 A/B 50000 mPa·s[4] 50000 mPa·s[4] > 25 N/mm[10] > 25 N/mm[10] 43[14] 43[14] - - > 4.5 N/mm²[16] > 4.5 N/mm²[16] > 300 %[19] > 300 %[19] Resistance against PU Dry surface Food-contact Flowable No chemical shrinkage, Two-component, Addition Curing Highly transparent
ELASTOSIL® M 4642 A/B 20000 mPa·s[4] 20000 mPa·s[4] > 30 N/mm[10] > 30 N/mm[10] 37[14] 37[14] - - 7 N/mm²[16] 7 N/mm²[16] 480 %[19] 480 %[19] Resistance against casting resins - - Flowable No chemical shrinkage, Two-component, Addition Curing -
ELASTOSIL® M 4643 A/B 40000 mPa·s[4] 40000 mPa·s[4] > 10 N/mm[10] > 10 N/mm[10] 48[14] 48[14] - - 5 N/mm²[16] 5 N/mm²[16] 300 %[19] 300 %[19] Resistance against casting resins - - Flowable No chemical shrinkage, Two-component, Addition Curing -
ELASTOSIL® M 4644 A/B 70000 mPa·s[4] 70000 mPa·s[4] > 25 N/mm[10] > 25 N/mm[10] 40[14] 40[14] - - 5.5 N/mm²[16] 5.5 N/mm²[16] 400 %[19] 400 %[19] Resistance against PU Slightly oil bleeding - Flowable No chemical shrinkage, Two-component, Addition Curing Highly transparent
ELASTOSIL® M 4645 A/B 50000 mPa·s[4] 50000 mPa·s[4] > 28 N/mm[10] > 28 N/mm[10] 40[14] 40[14] - - 5 N/mm²[16] 5 N/mm²[16] 330 %[19] 330 %[19] Resistance against PU Strong oil bleeding - Flowable No chemical shrinkage, Two-component, Addition Curing Highly transparent
ELASTOSIL® M 4670 A/B 120000 mPa·s[4] 120000 mPa·s[4] 15 N/mm[10] 15 N/mm[10] 55[13] 55[13] - - 5.5 N/mm²[15] 5.5 N/mm²[15] 280 %[18] 280 %[18] Resistance against polyester, Resistance against epoxy resins, Resistance against PU Dry surface Food-contact Flowable No chemical shrinkage, Two-component, Addition Curing -
ELASTOSIL® RT 480 300000 - 400000 mPa·s[7] 300000 - 400000 mPa·s[7] > 7 N/mm[10] > 7 N/mm[10] 55[14] 55[14] - - 4.5 N/mm²[16] 4.5 N/mm²[16] 170 %[19] 170 %[19] - - - Spreadable self-levelling flow Condensation-curing, Two-component, Fast curing at room temperature -
ELASTOSIL® RT 625 A/B 25000 mPa·s[4] 25000 mPa·s[4] 30 N/mm[10] 30 N/mm[10] 25[13] 25[13] - - 6.5 N/mm²[15] 6.5 N/mm²[15] 600 %[18] 600 %[18] - - - Flowable Two-component, Addition Curing -
ELASTOSIL® RT 646 A/B 110000 mPa·s[3] 110000 mPa·s[3] 12 N/mm[10] 12 N/mm[10] 53[13] 53[13] - - 5 N/mm²[15] 5 N/mm²[15] 280 %[18] 280 %[18] Resistance against casting resins - - Flowable Two-component, Addition Curing -
ELASTOSIL® RT K - - > 3 N/mm[12] > 3 N/mm[12] 45[14] 45[14] - - 2 N/mm²[16] 2 N/mm²[16] 130 %[19] 130 %[19] - - - - Condensation-curing, Two-component -
ELASTOSIL® VARIO 15 5.000 mPa·s[8] 5.000 mPa·s[8] 15[10] 15[10] 15[13] 15[13] - - 6.5 N/mm²[15] 6.5 N/mm²[15] 900 %[18] 900 %[18] - - Food-contact Flowable No chemical shrinkage, Two-component, Addition Curing -
ELASTOSIL® VARIO 40 15.000 mPa·s[9] 15.000 mPa·s[9] 15 N/mm[10] 15 N/mm[10] 40[13] 40[13] - - 8 N/mm²[15] 8 N/mm²[15] 450 %[18] 450 %[18] - - Food-contact Flowable No chemical shrinkage, Two-component, Addition Curing -
SILESTER® AR - - - - - - - - - - - - - - - - - -
SILESTER® XAR - - - - - - - - - - - - - - - - - -
Legend
[1] Viscosity, dynamic | Brookfield,  [2] Viscosity, dynamic 23°C | ISO 3219,  [3] Viscosity, dynamic | 23 °C | ISO 3219,  [4] Viscosity, dynamic after stirring | 23 °C | ISO 3219,  [5] Viscosity, dynamic after stirring | 23 °C ,  [6] Viscosity, dynamic after stirring | 23 °C | DIN EN ISO 3219,  [7] Viscosity, dynamic | 23 °C | Brookfield,  [8] Viscosity, dynamic 23°C, stirred | ISO 3219,  [9] Viscosity, dynamic 23° C, stirred | ISO 3219,  [10] Tear strength | ASTM D 624 B,  [11] Tear strength | ASTM D 624, Die B,  [12] Tear strength | ASTM 624 B,  [13] Hardness Shore A | DIN ISO 48-4,  [14] Hardness Shore A | ISO 868,  [15] Tensile strength | ISO 37 type 1,  [16] Tensile strength | ISO 37,  [17] Tensile strength | DIN ISO 37,  [18] Elongation at break | ISO 37 type 1,  [19] Elongation at break | ISO 37,  [20] Hardness Shore 00 | ASTM D 2240