H.B. Fuller

Identification

GBU: BAS
RTU Product Type: Structural Sealant,

Sealant

Categories: Technologies → Adhesives & Sealants → Product Families → Sealing Technology → Water-Based Sealants

Applications

Application Area: Joints
Application Method: Trowel
Compatible Substrates & Surfaces: Glass,

Polyurethane (PU) Foam,

Polystyrene (PS) Foam

Applications & Uses

Cleaning Information

Clean tools and equipment with mineral spirits (flammable) or chlorinated solvent (non-flammable).

Preparation and Application Information

Material Preparation

Do not thin.
Apply only to clean, dry surfaces.
Keep container closed when not in use.

Application

Apply by trowel, putty knife, power extrusion or bulk caulking gun.
When sealing insulation joints, apply FOAMSEAL™ 30-45N sealant at 1/16- to 1/8-inch wet film thickness (1.6 to 3.2 mm) and press mating surfaces together firmly to squeeze out air bubbles and to obtain complete contact.
When flashing, do not trowel out to feather edge, but maintain a minimum of 1/8-inch wet film thickness (3.2 mm) throughout the entire area of use. Use membrane as specified.
For best results, allow to cure 24 – 48 hours before top coating with solvent-based elastomeric mastics or coatings.
Note: Pressurized piping made from copper and aluminum alloys may be susceptible to corrosion under insulation when moisture is present and in direct contact with many materials.
When used as a joint sealant, direct contact between pressurized pipes made from these metals and the sealant should be prevented.

Joint sealant for metal jacketing systems

All joints of aluminum or stainless steel jacketing shall be weather sealed by applying a 1/8” (0.31 cm) bead of 30-45N sealant underneath the lap.
Jacketing shall be firmly embedded and pulled up tight.
All overflow of sealant shall be removed with solvents.

Power extrusion

FOAMSEAL™ 30-45N sealant may be applied using a wide variety of power (pressure) extrusion equipment suitable for use with oil-based sealants.
Typical viscosity range: 0.5 – 1.0 million cps.

Features

Ready-to-Use Product Features: Good Weather Fastness,

Water Resistant,

Vapor Barrier

Features & Benefits

Product Highlights

FOAMSEAL™ 30-45N Sealant seals the joints of cellular glass, PIR, polystyrene and other insulations against the entrance of moisture.
When used as a vapor stop bedding compound on iron or steel surfaces and as a joint sealant, 30-45N provides additional protection to the blocks of insulation.
Damage to the insulation due to migration of moisture is minimized.
FOAMSEAL™ 30-45N Sealant is water and weather resistant and is often used as a sealant and flashing compound where structural parts must penetrate an insulation surface.
It is also suggested for use to seal seams in metal jacketing.
FOAMSEAL™ 30-45N Sealant meets the requirements of:
- MAS Certified Green®
- California Dept. of Public Health Standard Method v1.2
- VOC Emissions and Content requirements to contribute to LEED v4 EQ Credit: Low Emitting Materials – Paints and Coatings
- Collaborative for High Performance Schools EQ 7.1

Packaging & Availability

Regional Availability

Asia Pacific
Europe
North America
Latin America
India/MiddleEast/Africa (IMEA)

Physical Properties

Color (Properties): Grey
Physical Form: Liquid

Properties

Shelf Life:

12 months

Application Properties


	Value	Units	Test Method / Conditions
Application Temperature	10 - 43	°C	-
Service Temperature Range	-73 to 149	°C	-
Viscosity	500,000 - 1,000,000	cPs	-

Typical Properties


	Value	Units	Test Method / Conditions
Average Non-Volatile Content	90	Vol(%)	ASTM D2369
Average Non-Volatile Content	95	Wt(%)	ASTM D2369
Coverage (trowel, 3.2 mm to 1.6 mm wet film thickness)	12 - 25	ft²/gal	-
Density	13.5	lbs/gal	ASTM D1475
Drying Time (at 23ºC, 50% RH, full set)	7	days	-
Drying Time (at 23ºC, 50% RH, to touch, skins over)	24	hours	-
Flash Point (wet flammability)	61	°C	ASTM F1249
Storage Temperature	4 - 38	°C	-
Volatile Organic Compound Content	85	g/L	-
Water Vapor Permeance (at 38°C and 90% RH, testing was conducted on 1/8” film)	0.06	perms	ASTM F1249

Regulatory & Compliance

Certifications & Compliance: Materials Analytical Services (MAS) Certified Green
Chemical Inventories: DSL (Canada),

ENCS (Japan),

IECSC (China),

KECI (Korea),

PICCS (Phillipines),

TSCA (USA)

Storage & Handling

Handling Conditions

Store between 40°F (4°C) and 100°F (38°C).
Apply between 50°F (10°C) and 110°F (43°C).
Allow to cure one week before placing in heated service.
At temperatures above 200°F, the sealant may harden and become discolored while maintaining its seal.
Not suggested for use under solvent-based elastomeric mastics and coatings if minor surface discoloration and/or dirt pick-up would be objectionable.
Discoloration can be minimized by allowing 24 to 48 hours cure time before top coating.
Make certain this product is completely dry and the area free from product odor if food is involved.
Will form a skin where exposed resulting in a greenish gray surface color on aging.
Remove excess sealant from the surface of jacketing where the color change will be objectionable

Shelf Life