ASTM
ASTM International
ASTM D-709, 1997, “Standard Specifications for Laminated Thermosetting Materials.”
This standard matches, fairly closely, the grades that are in NEMA LI 1-1998 and was re-approved in 2001. For the most part, the reference to military standards is out of date, and most of them have been removed from circulation because they are obsolete.
This standard is utilized to obtain information about the test methodology used to measure specific properties. The ASTM is well recognized for its work in standardizing procedures and test methods as well as conditions that should be present in the laboratory or equipment from which the testing is performed. Norplex-Micarta’s lab and testing is done in strict accordance with the ASTM standards as described in this document.
Sheet Grades
| Grade Type | Description | Norplex-Micarta Grades |
|---|---|---|
| Fr-4 (see note) | epoxy glass flame retardant | GSFR4 GSFR4A NP130 NP130HF NP506A NP510A NP510WR |
| Fr-5 | epoxy glass flame retardant high temperature | MC511FR NP513FR |
| G-3 | phenolic glass | NP504 |
| G-5 | melamine glass | NP509 |
| G-7 (see note) | silicone glass | MC507U |
| G-9 | melamine glass | NP509 |
| G-10 | epoxy glass | NP500A |
| G-11 | epoxy glass high temprature | MC511A MC511AF NP511 NP511EM NP572 |
| C | phenolic canvas | GSC NP310 NP310HT NP342 |
| CE | phenolic canvas electrical grade | GSCE NP310E |
| L | phenolic linen | NP320 |
| LE | phenolic linen electrical grade | MC320LE NP320E |
| X | phenolic paper | NP610 |
| XP | phenolic paper punching grade | NP611 NP611R |
| XPC | phenolic paper cold punching grade | NP612 |
| XX | phenolic paper | NP629 |
| XXX | phenolic paper | NP630 |
| N-1 | phenolic nylon | NP101 |
MC507U and NP510WR does not meet all of the properties of their corresponding ASTM grades. Please refer to the technical data bulletins and contact Norplex-Micarta for further details.
Convolute Wound Tube Grades
| Grade Type | Description | Norplex-Micarta Grades |
|---|---|---|
| G-3 (see note) | phenolic glass | RT504 RT504F |
| G-5 | melamine glass | RT505 RT505F |
| G-7 | silicone glass | RT507 RT507F |
| G-9 | melamine glass | RT509 RT509F |
| G-10 | epoxy glass | RT500 RT500F RT500M RT500X |
| G-10 High Temperature “G-11” (see note) | epoxy glass high temperature | RT511 RT511F RT511H RT511M |
| C | phenolic canvas | RT310 RT310H RT310S RT342 RT342H |
| LE | phenolic linen | RTB320 RTB320H RTB320X RTB320Z |
| X | phenolic paper | RT610 |
| XX | phenolic paper | RT629 |
| XXX | phenolic paper | RT630 |
Although G-3 tubing grades are recognized by NEMA, ASTM and MIL-I-24768 standards as a material form, property requirements are undefined at this time.
NEMA Standard LI 1-1998, ASTM D709 and MIL-I-24768 do not recognize a high temperature epoxy glass convolute rolled tube form, but, these materials are manufactured with a high temperature epoxy resin system, commonly used for ASTM D709 G-11, NEMA G-11 and MIL-I-24768/27, type GEB sheet products, and do have improved thermal properties at elevated temperatures.
Rolled and Molded Rods
| Grade Type | Description | Norplex-Micarta Grades |
|---|---|---|
| Fr-4 | epoxy glass flame retardant | RM130 |
| G-3 (see note) | phenolic glass | RM504 |
| G-5 | melamine glass | RM505 |
| G-10 | epoxy glass | RM500A |
| G-10 High Temperature “G-11” (see note) | epoxy glass high temperature | RM511A |
| C | phenolic canvas | RM310 |
| CE | phenolic canvas | RM310E |
| L | phenolic linen | RM320 RM320H |
| LE | phenolic linen electrical grade | RM320LE |
| XX | phenolic paper | RM629 |
| XXX | phenolic paper | RM630 |
Although G-3 tubing grades are recognized by NEMA, ASTM and MIL-I-24768 standards as a material form, property requirements are undefined at this time.
NEMA Standard LI 1-1998, ASTM D709 and MIL-I-24768 do not recognize a high temperature epoxy glass convolute rolled rod form, but, these materials are manufactured with a high temperature epoxy resin system, commonly used for NEMA G-11 and MIL-I-24768/27, type GEB sheet products, and do have improved thermal properties at elevated temperatures.