Applications

H.B. Fuller URALITE FH1270

Technology: Polyurethane Electrical Protective Coating
Product Code: URALITE FH1270
Manufacturer: H.B. Fuller Company
Package Size: Not specified (check with supplier)
Shelf Life: 12 months unopened

1. Product Overview

H.B. Fuller URALITE FH1270 is a two-component, high-solids, thermosetting polyurethane film designed for electrical insulation. It is non-toxic and offers strong protective properties when applied to printed circuit assemblies. The material meets Raytheon’s HMS #16-1847 Rev. L, Type II, Class 1 specification for high-solids brush applications.


2. Applications

FH1270 is ideal for:

  • Printed circuit assembly coatings to provide electrical insulation.
  • Electronics protection, safeguarding against environmental exposure.
  • High-durability coatings requiring strong dielectric properties.

 

3. Typical Properties (Uncured Material)

Property Part A Part B Blend
Blending Ratio (by weight) 66 100
Color Yellow Colorless Yellow
Color Modifier Light Light
Density (lb/gal, ASTM D0792) 7.91 9.4 8.75
Viscosity (cP, 25°C, TMTS001) 500 300 300
Shelf Life (months) 12 12
Solid Content (% Non-Volatiles, TMWB052) 75% 60%
Specific Gravity (D792/D1475) 0.95 1.13
Odor Ester-like Solvent
Solvent System PM Acetate, Toluene

4. Typical Properties After Mixing & Curing

Property Value Test Method/Condition
Gel Time (83g, 23°C) >6 hours
Tack-Free Time (93°C) 25 – 30 min TMTS074
Viscosity Flow Index (Zahn Cup #2) 36 – 44 sec TMSC077
Dielectric Strength 579 V/mil
Dielectric Constant (1 MHz) 3.26
Dissipation Factor (1 MHz) 0.021
Volume Resistivity 1.9 × 10¹⁶ ohm-cm
Surface Resistivity 8.22 × 10¹⁶ ohm

Everwide FX244-1: High Performance for Precision Molding

FX244-1 A specialized two-part silicone rubber designed for creating high-precision molds. This material features a unique oil-bleeding property that creates a self-releasing surface, eliminating the need for external non-stick sprays during demolding.

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