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Standard Por-A-Mold
Introduction
The versatility of our molding systems allows you to not only experience Por-A-Mold's trademark ease-of-use in both mixing and curing, but also to create molds tailored to your needs by offering a wide range of physical properties.No matter which of our excellent molding materials you choose, from our flexible, multi-purpose S333 to our line of spreadable thixotropic (TA) (more information on TA products here) molding systems for vertical surfaces, you'll find Por-A-Mold's ease-of-use extends beyond its one-to-one by volume mix ratios and its overnight, room temperature cure time.
Our materials can be hand-mixed in small quantities of up to one gallon at a time or, if you are produce large quantities, you may wish to take advantage of Pathway Polymers' specially-developed pumping system which automatically blends the two components from 55 gallon drums. Either way, it's easy!
Applications and Uses
Por-A-Mold gives true detailed reproductions of original masters in Pathway Polymers' own urethane casting system Por-A-Kast, wax, epoxy, polyester resin, Plaster of Paris, gypsum, and concrete materials to name a few. Synlube 531 release agent is recommended for use with Por-A-Mold and Por-A-Kast.Physical Properties ofStandard Por-A-Mold
The following Por-A-Mold products cure at ambient temperature,70-77º F (21-25º C), in 24 hours.
Property
Shore A Hardness
20±2
20±2
33±2
33±2
50±2
50±2
50±2
29±2
Specific Gravity (Cured Elastomer)
1.29
NA
1.11
NA
1.33
NA
1.03
1.023
Ultimate Tensile, PSI
211
NA
400
NA
415
NA
1200
907
Elongation, %
500
NA
450
NA
250
NA
450
1000
Tear, Die C, PLI
51
NA
78
NA
88
NA
147
108
Tear, Split, PLI
8.1
NA
9
NA
12
NA
20
24
Rebound, Bashore, %
42
NA
52
NA
52
NA
57
54
Mixed Viscosity @ 25°C, cps
2000
TA
1500
TA
3750
TA
2200
1025
Mix Ratio by Weight Curative:Prepolymer
1.14:1
NA
1.12:1
NA
1.25:1
NA
1:1
1:1
Mix Ratio by Volume Curative:Prepolymer
1:1
1:1
1:1
1:1
1:1
1:1
1:1
1:1
Resin Shelf Life (Months)
6
6
6
6
6
6
6
6
Pot Life* (Minutes)
20
20
20
20
20
15
20
15-20
Gel Time* (Minutes)
20
30
20
30
15-20
35
20
25-30
*Pot life, gel time, and cure time will vary with mass and the temperature of the components.
The conditions for your use and application of our products, technical assistance and information (whether verbal, written or by way of production evaluations), including any suggested formulations and recommendations, are beyond our control. Therefore, it is imperative that you test our products, technical assistance and information to determine to your own satisfaction whether they are suitable for your intended uses and applications. This application-specific analysis at least must include testing to determine suitability from a technical as well as health, safety, and environmental standpoint. Such testing has not necessarily been done by Pathway Polymers. All information is given without warranty or guarantee. It is expressly understood and agreed that customer assumes and hereby expressly releases Pathway Polymers from all liability, in tort, contract or otherwise, incurred in connection with the use of our products, technical assistance and information. Any statement or recommendation not contained herein is unauthorized and shall not bind Pathway Polymers. Nothing herein shall be construed as a recommendation to use any product in conflict with patents covering any material or its use. No license is implied or in fact granted under the claims of any patent.
March 17, 2000. Updated July 17, 2002
