Lydall (Thermal and acoustical insulation)

Introduction

Insul-Fab distributes a curated line of Lydall specialty insulation materials — fiberglass gasketing, thermal insulation paper, high-temperature ceramic papers, and advanced thermal/acoustical shields — engineered for demanding OEM applications across automotive, appliance, lighting, HVAC, and aerospace industries. Lydall, an Alkagen brand, is an ISO 9001-certified manufacturer with a long track record of performance in high-temperature and space-constrained environments.

The Lydall portfolio available through Insul-Fab includes the ManniGlas® glass gasketing and insulation papers, Lytherm® high-temperature ceramic papers, and Zero Clearance® thermal and acoustical shields. All products are designed for precision fabrication — offering excellent die-cutting characteristics, dimensional stability, and consistent performance across a wide range of temperatures. Insul-Fab converts these materials to customer specifications using die cutting, roll slitting, laminating, and kiss-cut tape capabilities.

Product ID	Description	Data Sheet
ManniGlas^® 1900	Premium grade, non-respirable glass alternative to silicone and ceramic fiber gasketing materials
ManniGlas^® 2000	Non-respirable paper that offers outstanding thermal performance in a range of thermal gasket applications
Lytherm^® 970	Washed, spun, high purity alumina-silica fibers formed into a highly flexible sheet
Zero Clearance^®	An advanced alternative to traditional thermal and acoustical metal shields

Features

High-temperature performance — ManniGlas products rated for continuous use up to 1100°F (593°C); Lytherm 970 rated for continuous use up to 2300°F (1260°C)
Non-respirable glass fiber construction — safer handling vs. traditional silicone and ceramic fiber materials
Non-formaldehyde-based binders across the ManniGlas line
UL 94V-0 rated for non-flammability (ManniGlas grades; excludes certain specialty grades)
Excellent die-cutting properties — suitable for intricate shapes and narrow spans
Outstanding dimensional stability and highly uniform surface quality
Superior compression resistance for gasket and seal applications
Low LOI (loss on ignition) to meet low smoke and odor requirements
Binderless grade available (Lytherm 970-LH) — 100% inorganic for applications where off-gassing cannot be tolerated
Thermal shock resistant with low thermal conductivity and low heat storage
Available in white and black (ManniGlas 1902/2002) for appearance-sensitive assemblies
RoHS and REACH compliant across the full line
ISO 9001 certified manufacturing
Convertible to custom widths, shapes, and laminated constructions

APPLICATIONS

Lydall insulation materials are used in a broad range of thermal management and gasketing applications:

High-temperature gaskets and seals — thermal gaskets for appliances, boilers, furnaces, stoves, and water heaters
Thermal shields — laminated with foil to create thermal shields in automotive, lighting, and HVAC assemblies
Space-constrained insulation — thin, flexible sheets providing maximum thermal resistance where design space is limited
Automotive thermal protection — heat shields, gaskets, and thermal barriers in under-hood and exhaust-adjacent components
Lighting fixtures — foil-laminated thermal barriers for commercial and industrial light fixtures
Aircraft thermal and acoustic protection — noise reduction and thermal insulation in aircraft assemblies
Steam trace line and pipe insulation — wrapping and protective insulation for high-temperature piping
Hearth products — stoves, fireplaces, and hearth inserts requiring continuous high-temperature insulation
PSA-coated strips and seals — slit and adhesive-coated for use as thermal break seals in OEM assemblies
Refractory lining and furnace applications — Lytherm 970 for kiln, furnace, and high-temperature process equipment
Off-gassing-sensitive assemblies — Lytherm 970-LH binderless grade for clean environments where binder volatiles cannot be introduced