Enhanced TDS
Identification & Functionality
- Chemical Family
- Chemical Name
- CASE Ingredients Functions
- Technologies
Features & Benefits
- Labeling Claims
- Ready-to-Use Product Features
- Product Highlights
- 81-84NH Adhesive/Sealant can be used as both an attachment adhesive and joint sealant in low temperature installations using cellular glass, polystyrene, phenolic or PUR and PIR foam insulations.
- It contains no asphalt and can be top-coated with solvent based products without bleed-through.
- 81-84NH Adhesive/Sealant meets requirements for LEED 2009 IEQ 4.1 Low-Emitting Materials, Adhesives and Sealants.
- VOC 81-84NH Part A: 20 g/l, less water and exempt solvent.
- VOC 81-84 Part B: 0 g/l, less water and exempt solvents.
- 81-84NH Adhesive/Sealant contains no asbestos, lead, mercury, or mercury compounds.
Applications & Uses
- Markets
- Application Area
- Compatible Substrates & Surfaces
- Preparation and Application Information
Material Preparation
- Do Not Thin.
- Stirring should not be necessary, but if Part A has remained undisturbed for any extended period, stir well.
- Do not use sticks or paddles, which could splinter or otherwise contaminate the product.
- Containers must be kept closed and in dry storage when not in use.
- Blend only the amount of material, which can be applied in one hour.
- Mixing should be continued for three minutes maximum with a suitable air or electric mixer operating at low speed, until the 81- 84NH is smooth and completely homogeneous.
- Do not over mix. Do not heat Part A, Part B, or the mixed material.
- Exposure to vapors of heated product may be harmful.
- Heated vapors are potential respiratory and skin sensitizers, and possible eye irritants.
- Provide adequate ventilation in enclosed areas.
- The 3.4 gallon (12.8 liter) kit is packaged to allow for the full 48 oz (1.4 liter) jug of Part B to be mixed directly in the pail with 3 gallons (11.4 liters) of Part A.
- If Part A and Part B are ordered in separate packaging one 0.5 gallon (1.9 liter) jug of Part B is to be mixed with one 4 gallon (15.1 liter) pail of Part A.
- Alternately Part A and Part B may be portioned off and mixed in a separate container in quantities as needed for a one hour working period.
- When portioning off maintain the proper mix ratio:
- 8 Parts A: 1 Part B (By Volume)
- 9 Parts A: 1 Part B (By Weight)
- Replace the cap on unused Part B immediately after use to prevent moisture contamination.
Application
- Apply only to clean dry surfaces.
- Adhesive/Sealant 81-84NH may be applied to either or both surfaces at the recommended coverage rate.
- Surfaces must be bonded within one hour after application of the adhesive.
- On rough surfaces, a thicker application of 81-84NH is required as necessary to assure complete contact between the insulation and the substrate.
- A notched trowel is suggested.
Suggested coverages:
- Cellular glass block - 20 to 30 sq. ft./gallon (0.49 to 0.74 m2/l).
- Polyurethane, polystyrene, and polyisocyanurate rigid board stock – 50-100 sq. ft/gallon (1.22 to 2.45 m2/liter).
Clean-up
- Before adhesive cures, clean tools and equipment with chlorinated solvent (non-flammable) or mineral spirits (flammable). Dried 81- 84NH Adhesive/Sealant is extremely difficult to remove.
Properties
- Physical Form
- Typical Properties
- Application Properties
| Value | Units | Test Method / Conditions | |
| Average Weight / U.S. Gallon (Part a) | 12.1 | lbs. | ASTM D1475 |
| Average Weight / U.S. Gallon (Part B) | 10.3 | lbs. | ASTM D1475 |
| Average Weight / U.S. Gallon (Mixed (a&b)) | 11.9 | lbs. | ASTM D1475 |
| Average Non-Volatile (Mixed, by Volume) | 97.0 | % | ASTM D2369 |
| Average Non-Volatile (Mixed, by Weight) | 98.0 | % | ASTM D2369 |
| Coverage Range | 20 - 100 | sq. ft./gal. | - |
| Mixing Ratio (Parts A : Part B, by Volume) | 8 : 1 | - | - |
| Mixing Ratio (Parts A : Part B, by Weight) | 9 : 1 | - | - |
| Pot Life (at 25°C) | 1 - 2 | Hours | FSTM 91A |
| Curing Time (Set, at 25°C) | 8.0 | Hours | - |
| Curing Time (Cure Through, at 25°C) | 24.0 | Hours | - |
| Curing Time (Maximum Strength, at 25°C) | 7.0 | Days | - |
| Wet Flammability | 93.0 | °C | - |
| Value | Units | Test Method / Conditions | |
| Service Temperature Limits (PIR /Polyurethane foam insulations, as a joint sealant/adhesive) | -310 to 200 | °F | |
| Service Temperature Limits (PIR/Polyurethane foam insulations, PIR/Urethane foam to metal) | -265 to 200 | °F | |
| Service Temperature Limits (Cellular glass insulation, as a joint sealant/adhesive) | -100 to 200 | °F | |
| Service Temperature Limits (Cellular glass to stainless steel) | -155 to 200 | °F |
Regulatory & Compliance
Storage & Handling
- Shelf Life
- 12 months
- Handling Conditions
- Store and apply between 40°F (4°C) and 100°F (38°C).
- Allow 48 hours curing time at 73° F (23° C) minimum before placing in service.
- Pot life will be longer at lower temperatures, shorter at higher temperatures.
- Part B is sensitive to moisture and humidity.
- Keep container tightly sealed when not in use.
- Do not heat Part A, Part B, or the mixed material.