ELASTOSIL® M 4440

$ELASTOSIL<sup>®</sup> M 4440

Pourable, condensation-curing, two-component silicone rubber that vulcanizes at room temperature.

 

Main application: Making cost effective molds.

 


Properties

  •  very good flowability and self-deaeration
  •  medium Shore A hardness (approx. 37)
  •  very good resistance to common casting resins

Specific features of ELASTOSIL® M 4440

  • Condensation-curing
  • Flowable
  • Resistance against polyester
  • Resistance against PU
  • Two-component

ELASTOSIL® M 4440 is a general-purpose mold-making material suitable for casting resins, wax, gyp-sum, etc.


ELASTOSIL® M 4440 is preferred when no or only minor undercuts are involved and a certain inherent stability of the mold is required.

ELASTOSIL® M 4440 is cured by adding Catalyst T 37 for long pot lives and curing times, and Catalyst T 40 for short pot lives and curing times.


The pot life is the period of time at 23 °C / 50 % rel. humidity during which the catalyzed mix to attain a viscosity of 100,000 mPa s and still be just pourable

Comprehensive instructions are given in our leaflet “ROOM TEMPERATURE VULCANIZING (RTV) SILICONES - Material and Processing Guidelines"

Detailed information on other mold-making compounds in the ELASTOSIL ® M range is contained in our brochure “ELASTOSIL® Silicone Rubber for Mold Making”.

Storage

The 'Best use before end' date of each batch is shown on the product label.

Storage beyond the date specified on the label does not necessarily mean that the product is no longer usable. In this case however, the properties required for the intended use must be checked for quality assurance reasons.

Sales and support

Wacker Chemical Corporation
S State Road 4950
Ann Arbor, MI 48108
United States
+1  888  922-5374 (Phone)
Contact

How can we help you?

  • Do you need help in choosing a product or do you require technical support? If so, please contact our experts.
Ask a question

Would you like a product sample?

You can request a product sample here.

Request sample

More products

Products Technical data
Viscosity, dynamic Tear strength Hardness Shore A Tensile strength Elongation at break
CENUSIL® M 810 A/B 3000 mPa·s[1] 3000 mPa·s[1] 15 N/mm[11] 15 N/mm[11] 10[14] 10[14] 3.5 N/mm²[17] 3.5 N/mm²[17] 600 %[20] 600 %[20]
CENUSIL® M 820 A/B 6000 mPa·s[2] 6000 mPa·s[2] - - 20[14] 20[14] 4 N/mm²[17] 4 N/mm²[17] 500 %[20] 500 %[20]
CENUSIL® M 825 A/B 8000 mPa·s[3] 8000 mPa·s[3] 20 N/mm[11] 20 N/mm[11] 25[14] 25[14] 5 N/mm²[17] 5 N/mm²[17] 450 %[20] 450 %[20]
CENUSIL® M 830 A/B 8000 mPa·s[3] 8000 mPa·s[3] > 20 N/mm[11] > 20 N/mm[11] 26[14] 26[14] 5 N/mm²[17] 5 N/mm²[17] 500 %[20] 500 %[20]
ELASTOSIL® FX 10 A/B 6000 mPa·s[3] 6000 mPa·s[3] > 20 N/mm[12] > 20 N/mm[12] 10[14] 10[14] 4.5 N/mm²[17] 4.5 N/mm²[17] 950 %[20] 950 %[20]
ELASTOSIL® M 1470 - - > 10 N/mm[11] > 10 N/mm[11] 45[15] 45[15] 4.5 N/mm²[18] 4.5 N/mm²[18] 230 %[21] 230 %[21]
ELASTOSIL® M 4115 A/B 2500 mPa·s[3] 2500 mPa·s[3] 5 N/mm[11] 5 N/mm[11] 17[14] 17[14] 3 N/mm²[17] 3 N/mm²[17] 400 %[20] 400 %[20]
ELASTOSIL® M 4125 F A/B 6000 mPa·s[3] 6000 mPa·s[3] - - 28[15] 28[15] 5.0[19] 5.0[19] 500[21] 500[21]
ELASTOSIL® M 4370 A/B 350 mPa·s[4] 350 mPa·s[4] > 4 N/mm[11] > 4 N/mm[11] 55[14] 55[14] 3.0 N/mm²[18] 3.0 N/mm²[18] 130 %[21] 130 %[21]
ELASTOSIL® M 4400 30000 mPa·s[5] 30000 mPa·s[5] > 3 N/mm[11] > 3 N/mm[11] 23[15] 23[15] 2 N/mm²[18] 2 N/mm²[18] 250 %[21] 250 %[21]
ELASTOSIL® M 4440 25000 mPa·s[5] 25000 mPa·s[5] 4.5 N/mm[11] 4.5 N/mm[11] 37[15] 37[15] 2.5 N/mm²[18] 2.5 N/mm²[18] 220 %[21] 220 %[21]
ELASTOSIL® M 4470 15000 mPa·s[6] 15000 mPa·s[6] > 4 N/mm[11] > 4 N/mm[11] 60[15] 60[15] 4.5 N/mm²[18] 4.5 N/mm²[18] 120 %[21] 120 %[21]
ELASTOSIL® M 4503 40000 mPa·s[6] 40000 mPa·s[6] > 20 N/mm[11] > 20 N/mm[11] 25[14] 25[14] 20 N/mm²[18] 20 N/mm²[18] 350 %[21] 350 %[21]
ELASTOSIL® M 4511 25000 mPa·s[5] 25000 mPa·s[5] > 18 N/mm[11] > 18 N/mm[11] 12[15] 12[15] 3.5 N/mm²[18] 3.5 N/mm²[18] 600 %[21] 600 %[21]
ELASTOSIL® M 4512 30000 mPa·s[5] 30000 mPa·s[5] > 24 N/mm[11] > 24 N/mm[11] 20[15] 20[15] 3.5 N/mm²[18] 3.5 N/mm²[18] 500 %[21] 500 %[21]
ELASTOSIL® M 4514 35000 mPa·s[6] 35000 mPa·s[6] > 25 N/mm[11] > 25 N/mm[11] 25[14] 25[14] 4.5 N/mm²[18] 4.5 N/mm²[18] 450 %[21] 450 %[21]
ELASTOSIL® M 4541 40000 mPa·s[6] 40000 mPa·s[6] > 30 N/mm[11] > 30 N/mm[11] 32[15] 32[15] 5 N/mm²[18] 5 N/mm²[18] 400 %[21] 400 %[21]
ELASTOSIL® M 4600 A/B 20000 mPa·s[6] 20000 mPa·s[6] > 20 N/mm[11] > 20 N/mm[11] 20[15] 20[15] 7[18] 7[18] 800 %[21] 800 %[21]
ELASTOSIL® M 4600 A/B US 25000 cP[3] 25000 cP[3] 31.5 N/mm[11] 31.5 N/mm[11] 20[15] 20[15] 7.00 N/mm²[18] 7.00 N/mm²[18] 800 %[21] 800 %[21]
ELASTOSIL® M 4601 A/B 15000 mPa·s[6] 15000 mPa·s[6] > 30 N/mm[11] > 30 N/mm[11] 28[15] 28[15] 6.5 N/mm²[18] 6.5 N/mm²[18] 700 %[21] 700 %[21]
ELASTOSIL® M 4601 US A/B 25000 mPa·s[7] 25000 mPa·s[7] > 170 lb/in[11] > 170 lb/in[11] 28[15] 28[15] 940 psi[18] 940 psi[18] 700 %[21] 700 %[21]
ELASTOSIL® M 4635 US A/B 20000 mPa·s[8] 20000 mPa·s[8] 170 ppi[13] 170 ppi[13] 37[15] 37[15] 950 psi[18] 950 psi[18] 480 %[21] 480 %[21]
ELASTOSIL® M 4642 A/B 20000 mPa·s[6] 20000 mPa·s[6] > 30 N/mm[11] > 30 N/mm[11] 37[15] 37[15] 7 N/mm²[18] 7 N/mm²[18] 480 %[21] 480 %[21]
ELASTOSIL® M 4643 A/B 40000 mPa·s[6] 40000 mPa·s[6] > 10 N/mm[11] > 10 N/mm[11] 48[15] 48[15] 5 N/mm²[18] 5 N/mm²[18] 300 %[21] 300 %[21]
ELASTOSIL® M 4670 A/B 120000 mPa·s[6] 120000 mPa·s[6] 15 N/mm[11] 15 N/mm[11] 55[14] 55[14] 5.5 N/mm²[17] 5.5 N/mm²[17] 280 %[20] 280 %[20]
ELASTOSIL® M 4670 US A/B 150000 mPa·s[6] 150000 mPa·s[6] > 68 lb/in[11] > 68 lb/in[11] 55[16] 55[16] 795[18] 795[18] 300 %[21] 300 %[21]
ELASTOSIL® M 4720 A/B US 14000 mPa·s[8] 14000 mPa·s[8] 140 ppi[13] 140 ppi[13] 22[15] 22[15] 950 psi[18] 950 psi[18] 580 %[21] 580 %[21]
ELASTOSIL® M 4730 A/B US 17000 mPa·s[8] 17000 mPa·s[8] 110 ppi[13] 110 ppi[13] 30[15] 30[15] 900 psi[18] 900 psi[18] 400 %[21] 400 %[21]
ELASTOSIL® RT 480 300000 - 400000 mPa·s[8] 300000 - 400000 mPa·s[8] > 7 N/mm[11] > 7 N/mm[11] 55[15] 55[15] 4.5 N/mm²[18] 4.5 N/mm²[18] 170 %[21] 170 %[21]
ELASTOSIL® RT 623 US A/B 25000 mPa·s[8] 25000 mPa·s[8] 170 ppi[13] 170 ppi[13] 31[15] 31[15] 1000 psi[18] 1000 psi[18] 700 %[21] 700 %[21]
ELASTOSIL® RT 625 A/B 25000 mPa·s[6] 25000 mPa·s[6] 30 N/mm[11] 30 N/mm[11] 25[14] 25[14] 6.5 N/mm²[17] 6.5 N/mm²[17] 600 %[20] 600 %[20]
ELASTOSIL® RT 646 A/B 110000 mPa·s[3] 110000 mPa·s[3] 12 N/mm[11] 12 N/mm[11] 53[14] 53[14] 5 N/mm²[17] 5 N/mm²[17] 280 %[20] 280 %[20]
ELASTOSIL® RT K - - > 3 N/mm[13] > 3 N/mm[13] 45[15] 45[15] 2 N/mm²[18] 2 N/mm²[18] 130 %[21] 130 %[21]
ELASTOSIL® VARIO 15 5.000 mPa·s[9] 5.000 mPa·s[9] 15[11] 15[11] 15[14] 15[14] 6.5 N/mm²[17] 6.5 N/mm²[17] 900 %[20] 900 %[20]
ELASTOSIL® VARIO 40 15.000 mPa·s[10] 15.000 mPa·s[10] 15 N/mm[11] 15 N/mm[11] 40[14] 40[14] 8 N/mm²[17] 8 N/mm²[17] 450 %[20] 450 %[20]
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 ,  [5] Viscosity, dynamic after stirring | 23 °C | DIN EN ISO 3219,  [6] Viscosity, dynamic after stirring | 23 °C | ISO 3219,  [7] Viscosity, dynamic after stirring | 23 °C | Brookfield,  [8] Viscosity, dynamic | 23 °C | Brookfield,  [9] Viscosity, dynamic 23°C, stirred | ISO 3219,  [10] Viscosity, dynamic 23° C, stirred | ISO 3219,  [11] Tear strength | ASTM D 624 B,  [12] Tear strength | ASTM D 624, Die B,  [13] Tear strength | ASTM 624 B,  [14] Hardness Shore A | DIN ISO 48-4,  [15] Hardness Shore A | ISO 868,  [16] Hardness Shore A | ISO 867,  [17] Tensile strength | ISO 37 type 1,  [18] Tensile strength | ISO 37,  [19] Tensile strength | DIN ISO 37,  [20] Elongation at break | ISO 37 type 1,  [21] Elongation at break | ISO 37 

Order

My media


Go to order form

Sales Contact

Wacker Chemical Corporation
S State Road 4950
Ann Arbor, MI 48108
+1  888  922-5374 (Phone)

My favorites

My products