H.B. Fuller Isomelt R

Identification

GBU

BAS

RTU Product Type

Hot Melt Sealant,

1K (1 component) Sealant,

Hybrid Sealant,

Reactive Sealant,

Solvent free (100% Solids) Sealant

Categories

Markets → Building & Construction → Applications → Building Envelope & Roofing → EIFS & Insulation

Markets → Building & Construction → Applications → Building Envelope & Roofing → Glazing & Window Elements

Technologies → Adhesives & Sealants → Product Families → Bonding & Sealing Chemistry → Hybrid Adhesives & Sealants

Technologies → Adhesives & Sealants → Product Families → Sealing Technology → 1K (1 Component) Sealants

Technologies → Adhesives & Sealants → Product Families → Sealing Technology → Hot Melt Sealants

Technologies → Adhesives & Sealants → Product Families → Sealing Technology → Reactive Sealants

Technologies → Adhesives & Sealants → Product Families → Sealing Technology → Solvent-free Sealants

Application Information

Cure Method

Moisture Cure

Applications

Application Area

Windows,

Insulating Glass

Compatible Substrates & Surfaces

Glass

Applications & Uses

Cure Profile

This material cures in the presence of any moisture. A significant amount of strength is gained in the first 24 hours. >80% of the final strength is achieved in 7 days.

Usage Information

• Processing

Surfaces should be dry, clean, and free from dust or grease. A cleaning agent such as Körasolv GL and/or the glass and spacer manufacturer’s recommended procedures are appropriate for surface preparation. It is important to ensure that sealant is applied to the correct dimensions required for your application. Ensure recommended application temperature is maintained at the application nozzle to prevent cold joints and poor adhesion.

• Clean Up

Körasolv GL or common solvents such as methyl ethyl ketone (MEK) or acetone will clean uncured material.

Features

Ready-to-Use Product Features

Gas Barrier,

Good Adhesion,

Good Barrier Properties,

Good Mechanical Properties,

Excellent Gas Retention,

Intercept,

Low Moisture Barrier Properties

Features & Benefits

Product Characteristics

Isomelt R is a 100% solids, one-component, moisture-curable insulating glass sealant. Isomelt R brings the following to the IG industry:

• Chemical bonding to glass, excellent adhesion to IG substrates
• Industry-low moisture barrier properties
• Meets and/or exceeds ASTM E2190 and CGSB 12.8

Packaging & Availability

Regional Availability

• Europe
• North America
• Latin America
• India/MiddleEast/Africa (IMEA)

Packaging Information

• 55 gal straight-sided drum, 474 lb (215 kg)
• 5 gal pail, 40 lb (18.14 kg)

Physical Properties

Color (Properties)

Black,

Grey

Physical Form

Solid

Properties

Application Temperature:

91.0~110.0 °C

Density:

1174.334 kg/m³

Shear Strength:

0.64077 MPa

Shelf Life:

6.0 months

Specific Gravity:

1.17502

Tensile Strength:

1.0626 MPa

Typical Physical Properties

	Value	Units	Test Method / Conditions
Application Temperature (hand gun/automated line)	120 - 150	°C	-
Application Temperature (linear extruder)	91 - 110	°C	-
Density	9.8	lb/gal	-
Moisture Vapor Transmission Rate	max. 0.1	g/m²day	ASTM F-1249
Peel Strength (at 73°F, glass/aluminium/aluminium)	90	psi	-
Permeability (argon gas)	70	cm³/m²day	Internal Test Method
Recommended Press Bond Temperature	min. 140	°F	GED APN-0189
Safety Temperature (use in a well-ventilated area)	max. 350	°F	-
Shear Strength (at 73°F, glass/aluminium/aluminium)	93	psi	-
Solids Content	100	%	-
Tensile Strength (100% elongation)	154	psi	-

Regulatory & Compliance

Quality Standards

ASTM E2190,

CGSB 12.8

Safety & Health

Safety Conditions

Extreme care should be exercised when working with hot or warm melts in their fluid state. Use eye protection and thermally protective clothing. Use in a well-ventilated area and do not exceed 350°F.

Storage & Handling

Storage and Shelf Life Conditions

Store in a cool, dry, clean place. Packaging must be kept sealed and protected from moisture. Product may be stored in this manner for 6 months from date of manufacture.

Shelf Life

6 months