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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[13] 15 N/mm[13] 10[16] 10[16] - - 3.5 N/mm²[19] 3.5 N/mm²[19] 600 %[22] 600 %[22] - - - 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[16] 20[16] - - 4 N/mm²[19] 4 N/mm²[19] 500 %[22] 500 %[22] - - - 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[13] 20 N/mm[13] 25[16] 25[16] - - 5 N/mm²[19] 5 N/mm²[19] 450 %[22] 450 %[22] - - - 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[13] > 20 N/mm[13] 26[16] 26[16] - - 5 N/mm²[19] 5 N/mm²[19] 500 %[22] 500 %[22] 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[13] 25 N/mm[13] 25[16] 25[16] - - 5 N/mm²[19] 5 N/mm²[19] 500 %[22] 500 %[22] Resistance against polyester, Resistance against epoxy resins - - Flowable No chemical shrinkage, Two-component, Addition Curing, Fast curing at room temperature -
ELASTOSIL® C 1500 US A/B 26000 mPa·s[4] 26000 mPa·s[4] 25 N/mm[13] 25 N/mm[13] 27[17] 27[17] - - 5 N/mm²[20] 5 N/mm²[20] - - - - - - - -
ELASTOSIL® C 1500 US A/B CRT - - - - - - - - - - - - - - - - - -
ELASTOSIL® CAT VARIO - - - - - - - - - - - - - - - - - -
ELASTOSIL® CAT VARIO-F - - - - - - - - - - - - - - - - - -
ELASTOSIL® FX 10 A/B 6000 mPa·s[3] 6000 mPa·s[3] > 20 N/mm[14] > 20 N/mm[14] 10[16] 10[16] - - 4.5 N/mm²[19] 4.5 N/mm²[19] 950 %[22] 950 %[22] - - 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[5] 5000 mPa·s[5] 25 N/mm[14] 25 N/mm[14] 20[16] 20[16] - - > 6 N/mm²[19] > 6 N/mm²[19] > 750 %[22] > 750 %[22] - - 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[5] 10000 mPa·s[5] 28 N/mm[13] 28 N/mm[13] 28[16] 28[16] - - 6 N/mm²[19] 6 N/mm²[19] 500 %[22] 500 %[22] - - 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[5] 4000 mPa·s[5] 5.5 N/mm[14] 5.5 N/mm[14] - - 30[24] 30[24] > 1.5 N/mm²[19] > 1.5 N/mm²[19] > 900 %[22] > 900 %[22] - - Suitable for skin contact Flowable No chemical shrinkage, Two-component, Addition Curing, Fast curing at room temperature -
ELASTOSIL® M 1470 - - > 10 N/mm[13] > 10 N/mm[13] 45[17] 45[17] - - 4.5 N/mm²[20] 4.5 N/mm²[20] 230 %[23] 230 %[23] Heat resistant - - Kneadable Condensation-curing, Two-component -
ELASTOSIL® M 4115 A/B 2500 mPa·s[3] 2500 mPa·s[3] 5 N/mm[13] 5 N/mm[13] 17[16] 17[16] - - 3 N/mm²[19] 3 N/mm²[19] 400 %[22] 400 %[22] - - - 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[17] 28[17] - - 5.0[21] 5.0[21] 500[23] 500[23] - - Food-contact Flowable No chemical shrinkage, Two-component, Addition Curing, Fast curing at room temperature -
ELASTOSIL® M 4370 A/B 350 mPa·s[6] 350 mPa·s[6] > 4 N/mm[13] > 4 N/mm[13] 55[16] 55[16] - - 3.0 N/mm²[20] 3.0 N/mm²[20] 130 %[23] 130 %[23] 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[7] 30000 mPa·s[7] > 3 N/mm[13] > 3 N/mm[13] 23[17] 23[17] - - 2 N/mm²[20] 2 N/mm²[20] 250 %[23] 250 %[23] - - - Flowable Condensation-curing, Two-component -
ELASTOSIL® M 4440 25000 mPa·s[7] 25000 mPa·s[7] 4.5 N/mm[13] 4.5 N/mm[13] 37[17] 37[17] - - 2.5 N/mm²[20] 2.5 N/mm²[20] 220 %[23] 220 %[23] Resistance against polyester, Resistance against PU - - Flowable Condensation-curing, Two-component -
ELASTOSIL® M 4470 15000 mPa·s[5] 15000 mPa·s[5] > 4 N/mm[13] > 4 N/mm[13] 60[17] 60[17] - - 4.5 N/mm²[20] 4.5 N/mm²[20] 120 %[23] 120 %[23] Heat resistant - - Flowable Condensation-curing, Two-component Thermally conductive
ELASTOSIL® M 4503 40000 mPa·s[5] 40000 mPa·s[5] > 20 N/mm[13] > 20 N/mm[13] 25[16] 25[16] - - 20 N/mm²[20] 20 N/mm²[20] 350 %[23] 350 %[23] - - - Flowable Condensation-curing, Two-component -
ELASTOSIL® M 4511 25000 mPa·s[7] 25000 mPa·s[7] > 18 N/mm[13] > 18 N/mm[13] 12[17] 12[17] - - 3.5 N/mm²[20] 3.5 N/mm²[20] 600 %[23] 600 %[23] Resistance against polyester, Resistance against PU - - Flowable Condensation-curing, Two-component -
ELASTOSIL® M 4512 30000 mPa·s[7] 30000 mPa·s[7] > 24 N/mm[13] > 24 N/mm[13] 20[17] 20[17] - - 3.5 N/mm²[20] 3.5 N/mm²[20] 500 %[23] 500 %[23] Resistance against polyester, Resistance against PU - - Flowable Condensation-curing, Two-component -
ELASTOSIL® M 4514 35000 mPa·s[5] 35000 mPa·s[5] > 25 N/mm[13] > 25 N/mm[13] 25[16] 25[16] - - 4.5 N/mm²[20] 4.5 N/mm²[20] 450 %[23] 450 %[23] Resistance against polyester, Resistance against PU - - Flowable Condensation-curing, Two-component -
ELASTOSIL® M 4541 40000 mPa·s[5] 40000 mPa·s[5] > 30 N/mm[13] > 30 N/mm[13] 32[17] 32[17] - - 5 N/mm²[20] 5 N/mm²[20] 400 %[23] 400 %[23] Resistance against polyester, Resistance against PU - - Flowable Condensation-curing, Two-component -
ELASTOSIL® M 4600 A/B 20000 mPa·s[5] 20000 mPa·s[5] > 20 N/mm[13] > 20 N/mm[13] 20[17] 20[17] - - 7[20] 7[20] 800 %[23] 800 %[23] - - Food-contact Flowable No chemical shrinkage, Two-component, Addition Curing -
ELASTOSIL® M 4600 A/B US 25000 cP[3] 25000 cP[3] 31.5 N/mm[13] 31.5 N/mm[13] 20[17] 20[17] - - 7.00 N/mm²[20] 7.00 N/mm²[20] 800 %[23] 800 %[23] - - - - - -
ELASTOSIL® M 4601 A/B 15000 mPa·s[5] 15000 mPa·s[5] > 30 N/mm[13] > 30 N/mm[13] 28[17] 28[17] - - 6.5 N/mm²[20] 6.5 N/mm²[20] 700 %[23] 700 %[23] Resistance against casting resins - Food-contact Flowable No chemical shrinkage, Two-component, Addition Curing -
ELASTOSIL® M 4601 US A/B 25000 mPa·s[8] 25000 mPa·s[8] > 170 lb/in[13] > 170 lb/in[13] 28[17] 28[17] - - 940 psi[20] 940 psi[20] 700 %[23] 700 %[23] - - - - - -
ELASTOSIL® M 4630 A/B 15000 mPa·s[5] 15000 mPa·s[5] > 30 N/mm[13] > 30 N/mm[13] 28[17] 28[17] - - 6.5 N/mm²[20] 6.5 N/mm²[20] 700 %[23] 700 %[23] Resistance against concrete, Resistance against casting resins - Food-contact Flowable No chemical shrinkage, Two-component, Addition Curing -
ELASTOSIL® M 4630 BLUE US A/B 12000 mPa·s[9] 12000 mPa·s[9] 170 lb/in[15] 170 lb/in[15] 20[17] 20[17] - - 740 psi[20] 740 psi[20] 640 %[23] 640 %[23] - - - - - -
ELASTOSIL® M 4635 A/B 20000 mPa·s[5] 20000 mPa·s[5] > 30 N/mm[13] > 30 N/mm[13] 37[17] 37[17] - - 7 N/mm²[20] 7 N/mm²[20] 480 %[23] 480 %[23] Resistance against concrete, Resistance against casting resins - Food-contact Flowable No chemical shrinkage, Two-component, Addition Curing -
ELASTOSIL® M 4635 US A/B 20000 mPa·s[10] 20000 mPa·s[10] 170 ppi[15] 170 ppi[15] 37[17] 37[17] - - 950 psi[20] 950 psi[20] 480 %[23] 480 %[23] - - - - - -
ELASTOSIL® M 4641 A/B 50000 mPa·s[5] 50000 mPa·s[5] > 25 N/mm[13] > 25 N/mm[13] 43[17] 43[17] - - > 4.5 N/mm²[20] > 4.5 N/mm²[20] > 300 %[23] > 300 %[23] Resistance against PU Dry surface Food-contact Flowable No chemical shrinkage, Two-component, Addition Curing Highly transparent
ELASTOSIL® M 4641 A/B US 60000 cP[3] 60000 cP[3] > 24.5 N/mm[13] > 24.5 N/mm[13] 43[18] 43[18] - - > 4.50 N/mm²[20] > 4.50 N/mm²[20] > 300 %[23] > 300 %[23] - - - - - -
ELASTOSIL® M 4642 A/B 20000 mPa·s[5] 20000 mPa·s[5] > 30 N/mm[13] > 30 N/mm[13] 37[17] 37[17] - - 7 N/mm²[20] 7 N/mm²[20] 480 %[23] 480 %[23] Resistance against casting resins - - Flowable No chemical shrinkage, Two-component, Addition Curing -
ELASTOSIL® M 4643 A/B 40000 mPa·s[5] 40000 mPa·s[5] > 10 N/mm[13] > 10 N/mm[13] 48[17] 48[17] - - 5 N/mm²[20] 5 N/mm²[20] 300 %[23] 300 %[23] Resistance against casting resins - - Flowable No chemical shrinkage, Two-component, Addition Curing -
ELASTOSIL® M 4644 A/B 70000 mPa·s[5] 70000 mPa·s[5] > 25 N/mm[13] > 25 N/mm[13] 40[17] 40[17] - - 5.5 N/mm²[20] 5.5 N/mm²[20] 400 %[23] 400 %[23] Resistance against PU Slightly oil bleeding - Flowable No chemical shrinkage, Two-component, Addition Curing Highly transparent
ELASTOSIL® M 4645 A/B 50000 mPa·s[5] 50000 mPa·s[5] > 28 N/mm[13] > 28 N/mm[13] 40[17] 40[17] - - 5 N/mm²[20] 5 N/mm²[20] 330 %[23] 330 %[23] Resistance against PU Strong oil bleeding - Flowable No chemical shrinkage, Two-component, Addition Curing Highly transparent
ELASTOSIL® M 4670 A/B 120000 mPa·s[5] 120000 mPa·s[5] 15 N/mm[13] 15 N/mm[13] 55[16] 55[16] - - 5.5 N/mm²[19] 5.5 N/mm²[19] 280 %[22] 280 %[22] Resistance against polyester, Resistance against epoxy resins, Resistance against PU Dry surface Food-contact Flowable No chemical shrinkage, Two-component, Addition Curing -
ELASTOSIL® M 4670 US A/B 150000 mPa·s[5] 150000 mPa·s[5] > 68 lb/in[13] > 68 lb/in[13] 55[18] 55[18] - - 795[20] 795[20] 300 %[23] 300 %[23] - - - - - -
ELASTOSIL® M 4720 A/B US 14000 mPa·s[10] 14000 mPa·s[10] 140 ppi[15] 140 ppi[15] 22[17] 22[17] - - 950 psi[20] 950 psi[20] 580 %[23] 580 %[23] - - - Flowable Fast curing under heat, Two-component, Addition Curing -
ELASTOSIL® M 4730 A/B US 17000 mPa·s[10] 17000 mPa·s[10] 110 ppi[15] 110 ppi[15] 30[17] 30[17] - - 900 psi[20] 900 psi[20] 400 %[23] 400 %[23] - - - - - -
ELASTOSIL® RT 480 300000 - 400000 mPa·s[10] 300000 - 400000 mPa·s[10] > 7 N/mm[13] > 7 N/mm[13] 55[17] 55[17] - - 4.5 N/mm²[20] 4.5 N/mm²[20] 170 %[23] 170 %[23] - - - Spreadable self-levelling flow Condensation-curing, Two-component, Fast curing at room temperature -
ELASTOSIL® RT 623 US A/B 25000 mPa·s[10] 25000 mPa·s[10] 170 ppi[15] 170 ppi[15] 31[17] 31[17] - - 1000 psi[20] 1000 psi[20] 700 %[23] 700 %[23] - - - - - -
ELASTOSIL® RT 625 A/B 25000 mPa·s[5] 25000 mPa·s[5] 30 N/mm[13] 30 N/mm[13] 25[16] 25[16] - - 6.5 N/mm²[19] 6.5 N/mm²[19] 600 %[22] 600 %[22] - - - Flowable Two-component, Addition Curing -
ELASTOSIL® RT 646 A/B 110000 mPa·s[3] 110000 mPa·s[3] 12 N/mm[13] 12 N/mm[13] 53[16] 53[16] - - 5 N/mm²[19] 5 N/mm²[19] 280 %[22] 280 %[22] Resistance against casting resins - - Flowable Two-component, Addition Curing -
ELASTOSIL® RT K - - > 3 N/mm[15] > 3 N/mm[15] 45[17] 45[17] - - 2 N/mm²[20] 2 N/mm²[20] 130 %[23] 130 %[23] - - - - Condensation-curing, Two-component -
ELASTOSIL® VARIO 15 5.000 mPa·s[11] 5.000 mPa·s[11] 15[13] 15[13] 15[16] 15[16] - - 6.5 N/mm²[19] 6.5 N/mm²[19] 900 %[22] 900 %[22] - - Food-contact Flowable No chemical shrinkage, Two-component, Addition Curing -
ELASTOSIL® VARIO 40 15.000 mPa·s[12] 15.000 mPa·s[12] 15 N/mm[13] 15 N/mm[13] 40[16] 40[16] - - 8 N/mm²[19] 8 N/mm²[19] 450 %[22] 450 %[22] - - Food-contact Flowable No chemical shrinkage, Two-component, Addition Curing -
Legend
[1] Viscosity, dynamic | Brookfield,  [2] Viscosity, dynamic 23°C | ISO 3219,  [3] Viscosity, dynamic | 23 °C | ISO 3219,  [4] Viscosity, dynamic | 23 °C ,  [5] Viscosity, dynamic after stirring | 23 °C | ISO 3219,  [6] Viscosity, dynamic after stirring | 23 °C ,  [7] Viscosity, dynamic after stirring | 23 °C | DIN EN ISO 3219,  [8] Viscosity, dynamic after stirring | 23 °C | Brookfield,  [9] Viscosity, dynamic | 22 °C | ISO 3219,  [10] Viscosity, dynamic | 23 °C | Brookfield,  [11] Viscosity, dynamic 23°C, stirred | ISO 3219,  [12] Viscosity, dynamic 23° C, stirred | ISO 3219,  [13] Tear strength | ASTM D 624 B,  [14] Tear strength | ASTM D 624, Die B,  [15] Tear strength | ASTM 624 B,  [16] Hardness Shore A | DIN ISO 48-4,  [17] Hardness Shore A | ISO 868,  [18] Hardness Shore A | ISO 867,  [19] Tensile strength | ISO 37 type 1,  [20] Tensile strength | ISO 37,  [21] Tensile strength | DIN ISO 37,  [22] Elongation at break | ISO 37 type 1,  [23] Elongation at break | ISO 37,  [24] Hardness Shore 00 | ASTM D 2240