PRODUCT DATA SHEET
SEAL-8184- · REV 1 · Jul 2026
Ancillaries · Sealants & Coatings
81-84NH Adhesive/Sealant Kit
BRAND: Foster (H.B. Fuller)SKU FAMILY: SEAL-8184-1 STOCKED SIZE
Foster 81-84NH two-component thermosetting urethane adhesive/sealant — bonds and seals cellular glass (FOAMGLAS), polystyrene, phenolic and PUR/PIR insulation to themselves and to metal or masonry in low-temperature installations.
AT A GLANCE
Max service tempApply/store 40°F–100°F; cure 48 hr @ 73°F before service
FormTwo-component adhesive/sealant kit (3.4-gal, A&B)
APPLICATIONS
- FOAMGLAS/cellular glass joint sealing and bonding
- PUR/PIR and polystyrene attachment
- Cold-service and cryogenic vapor-seal details
- Bonding insulation to stainless steel and masonry
STOCKED SIZES & SKUS1 SIZES
| SKU | SIZE |
|---|
| SEAL-8184 | 81-84NH Adhesive/Sealant Kit |
FEATURES
- Attachment adhesive and joint sealant in one product
- No flammable solvents or halide-containing materials
- Strong yet flexible bond withstands thermal shock and impact
- No asphalt — can be top-coated with solvent-based products without bleed-through
- Low-VOC (20 g/L Part A) — meets LEED 2009 IEQ 4.1
PACKAGING & HANDLING
| Packaging | 3.4-gal kit (Part A + Part B); mix 8:1 by volume |
| Handling & storage | Blend only what can be applied in 1 hr; bond within 1 hr of application; do not thin or heat; coverage 20–30 ft²/gal on cellular glass, 50–100 ft²/gal on board stock |
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Data shown is nominal and per the manufacturer's published literature; verify against the current submittal and SDS before specifying. Sun City Energy Supplies stocks to spec, fabricates to size, and returns quotes the same business day. Informational only — not a warranty of fitness for a particular purpose.