You are here: Home » Product » Sheets » Epoxy Glass Sheets » HM34 Epoxy Glass Mat Laminate

HM34 Epoxy Glass Mat Laminate

HM34 Epoxy Glass Mat Laminate is a Class H (180 °C) epoxy‐bonded, non-woven glass mat composite engineered for exceptional electrical insulation and mechanical rigidity. Its balanced resin–reinforcement structure delivers low moisture uptake, high dielectric strength and long-term stability under oil-immersed and high-temperature service.

Quantity:
Availability:





Inquire Add to Basket

Product Details

HM34 is manufactured per IEC 60893-3-2 (EPGM 203) using a premium, high-cross-link density epoxy resin infused uniformly into a randomly oriented glass mat. The result is a void-free laminate that retains a flexural strength ≥ 340 MPa at ambient temperature and ≥ 207 MPa at 150 °C. Classified for continuous operation up to 155 °C and tested to a glass transition point of 180 °C, it resists creep, warpage and thermal fatigue. In oil or humid conditions, HM34 absorbs less than 0.15 % water and self-extinguishes to UL 94 HB. Available in 0.5–100 mm thicknesses and standard sheet formats, it machines cleanly for tight-tolerance components in high-voltage, rotating-machine and marine-grade applications.

Get a Quote

Product Parameters

Standard

IEC60893

NEMALI-1

DIN 7735

MIL-I-24768

Flexural Strength (Flatwise)

450 MPa

Compressive Strength (Flatwise)

480 MPa

Tensile Strength

260 MPa

Glass Transition (Tg)

180 °C (Class H)

Colors

Light Yellow

Product Advantages

High-Temperature Endurance

Class H rating allows reliable operation in continuous 155 °C service and intermittent peaks to 180 °C without loss of properties.

Premium Electrical Insulation

Superior dielectric strength and volume resistivity prevent surface tracking, corona and premature breakdown under high-voltage stress.

Low Moisture Uptake

Minimal water absorption (< 0.15 %) ensures dimensional stability and consistent insulating performance even in oil-immersed or humid environments.

Product Applications

Transformer Core Wedges & Shims

Precisely machined wedges retaining clamping force in hot-oil environments to prevent core movement and minimize magnetic losses.
Motor End-Shields & Phase Separators

End-plate and spacer components in high-speed electric motors, where thermal cycling and centrifugal forces demand high flexural strength.
Offshore Generator Insulators

Customized collars and bushings for marine generators, offering corrosion resistance and sustained dielectric integrity in salt-air atmospheres.

FAQ

What is the minimum order quantity?

The minimum order quantity depends on the specific product you are interested in. For detailed information, please contact us directly via email or WhatsApp.
What is the price of this product?

The price of our products varies depending on the quantity, size, and specifications. For an accurate quote, please reach out to us via email or WhatsApp, and we'll provide you with the best options tailored to your needs.
What is the average delivery time?

Delivery times vary based on the quantity and specifications of the order. Typically, delivery can take anywhere from 3 to 30 days. For more precise information, please contact us directly via email or WhatsApp.