Foamseal Ltd.
New Street House
Petworth
West Sussex
GU28 0AS
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How To Use/Properties/ Safety Data
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INSTRUCTIONS FOR USE
Applications
The Foamseal system is designed for use by professionals and DIY alike in sealing, insulating, patching and filling voids. The high closed cell content of the cured foam makes the Foamseal system suitable as a general sealant to prevent air leakage in cold storage and other insulating and sealing applications.
Surface Preparation
Area of application should be clean, dry and free of grease, oil, dust or dirt.
Instructions for Set-up
Before setting up, check to see if shelf-life has expired by reading the ′Must Be Used By′ date on the pack. Put on gloves safety goggles. Tank contents should be between 60-80oF (15.6-26.7oC) during dispensing. To insure maximum performance, tanks, ambient and substrate temperature should be 60-90oF (15.6-32.2oC), preferably 70-80oF (21-26oC).
Tips for Use
1. Always experiment prior to application to determine best approach.
2. When looking for an even spray coverage, maintain spray nozzle about two feet away from target area to avoid the foam splattering. Apply using a smooth, steady arm movement.
3. IT IS IMPORTANT TO APPLY THE RIGHT AMOUNT OF FOAM ON THE FIRST PASS, thereby eliminating the skin build up.
4. If the foam exceeding two inches thick is required, SPRAY 2 INCHES OF FOAM AT A TIME, and allow AT LEAST 20 MINUTES for foam to cure before applying additional layers, not more than 2 inches at a time.
5. If the spraying operation is stopped for more than 30 seconds, CHANGE THE NOZZLE. Foam will cure in the nozzle after 30 seconds.
Tip: During changeover of the nozzle, clean off the O-ring with cloth or paper.
6. When spraying large cavities, pay attention to the pressure and temperature build up. After spraying or pouring, ALLOW FOAM TO RISE BEFORE SPRAYING AGAIN. Depending on cavity configuration, pressure created is estimated at approximately 5 psi and temperature generated is over 200oF (93oC).
7. For pouring, as opposed to spraying, twist plastic tube onto the spray nozzle and proceed with application.
8. If colour of foam suddenly changes, stop spraying and check tanks to determine if they are empty.
9. If spraying or pouring thick layers of foam, 1-3 hours of applying foam, examine visually for smoke and touch foam to check for abnormally high temperatures. If foam is smoking or abnormally hot (not luke warm, but to hot to touch), spray foam with a fire extinguishing chemical to reduce temperature.
How to Set up Your Foamseal System
1. Set system in an upright position (valve on tanks facing up) and open the top of the carton. Take the gun applicator/hose assembly out of the carton.
2. Through the openings in the back of the carton, connect the red hose to the red tank (A Tank) and the blue hose to the white tank (B Tank), hand tighten, then tighten thoroughly with 9/16 (14cm) spanner (enclosed in nozzle pack).
3. Slowly open valve on each tank. Make sure tanks are FULLY OPENED. Check the hose/tank connections for leaks.
4. Fold flaps to re-close box.
5. The gun applicator is set in the OFF position when manufactured. To unlock, push switch to the ON position.
6. Direct the gun applicator into a waste container. Squeeze the trigger completely. Make sure that two strong streams spray out of the gun applicator.
7. Select a disposable mixing nozzle and align the slots on the nozzle with the yellow notch on the gun applicator barrel. Push the nozzle onto the yellow notch and twist clockwise to lock in place.
8. Direct spray nozzle into a waste container. Slowly squeeze the trigger. Check for proper mixing. Foam should be off-white in colour, not white or dark brown. If foam is not the correct colour, refer to the trouble shooting section of these instructions. System is now ready for use.
9. When you have finished spraying the Foamseal system can be stored by following the steps below:
1. Lock the gun applicator.
2. Remove mixing nozzle.
3. Wipe off excess foam from front of gun applicator.
4. Apply Vaseline (enclosed in the nozzle pack) to front of gun applicator and O-ring (see line drawing 7).
5. Open top of box and turn tank valves off for long-term storage (24hrs or more). Then re-close the top of the box.
10. To re-use system, refer to steps 3 - 9.
Properties
Yield
Foamseal 200 packs give 200 board feet of foam (equivalent to 80 cans of aerosol foam). A board foot represents one square foot of foam at one inch depth.
Physical Properties
| Density |
25kg/m3 |
| Thermal Conductivity |
0.023W/mK |
| Water Vapour Resistivity |
400MN.s/g.m |
| Closed Cell Content |
>90% |
| Flame Spread ASTM E-84 |
15 |
| Smoke Developed ASTM E-84 |
110 |
| Tensile Strength ASTM D-1623 |
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-parallel |
39.3 psi
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-perpendicular |
17.1 psi |
| Shelf-life |
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-unopened |
* 2 years
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-opened |
3 months |
| Compressive Strength (ASTMD1621) |
14.8 psi |
* from date of manufacture
Chemical Content
Polymeric Isocyanate, Polyol Resins and
HFC propellant.
For information, call: 01798 345400.
Class 1 Surface Spread of Flame (ASTM E- 84)
Foamseal contains fire retardants. However in common with all organic materials it is combustible and extreme caution should be taken with the use of naked flames. In essence it is more difficult to ignite than, say, wood, but in a fire situation it will burn and, as with all organic materials, give off toxic fumes.
Limitation of System
Weather Protection
When Foamseal is used for roofing or other outdoor applications, the foam must be protected from direct sunlight. Various liquid spray coatings are available for needed protection, such as acrylic, silicones, rubbers, and polyurethane elastomers.
Fire Protection
Interior use of Foamseal requires thermal protection such as 1/2" gypsum wallboard or the equivalent, unless fire testing proves otherwise.
Fresh Air Protection
Foamseal works well against air infiltration; therefore, care should be taken to balance the exchange of mechanical fresh air to natural air.
Yield
The yield of Foamseal may be affected by operator′s technique and by the temperature of the environment. It is important that the expansion rate of the system be taken into consideration prior to the application. Expansion rate is always related to the rate of spraying, area configuration and temperature variations. The yield of a system can be greatly increased by applying the right amount of foam on the first pass, thereby eliminating the skin build up. Operator should always experiment on a small scale in order to understand the needs of the applications. Foamseal 200 yields 200 board feet. A board foot represents one square foot of foam one inch in thickness.
Changing Nozzles
At temperatures of T = 70-80oF (21-26.7oC), cure time is in the range of 30-60 seconds. If system is stopped in excess of 30 seconds, the nozzle will have to be changed.
Density Considerations
Although Foamseal has a nominal density of 1.5 pcf, the density tends to rise to 2.0 pcf or more if used in confined areas.
Recommended Application Temperature
For optimum results, environmental and system temperatures should be maintained at an average of 75oF (24oC). Higher temperatures can reduce cure time, increase yield, lower systems density, physical properties and interval time between application. Lower temperatures can alter the ratio of dispensing, causing longer cure times and affecting the end properties of the system.
Adhesion Properties
The foam adheres to most substrates except materials such as Teflon, silicone and polyethylene. Foam also adheres to itself, allowing layers to build up to desired thickness.
Pressure and Temperature Considerations
When spraying large cavities, pay attention to the pressure and temperature build up. After spraying or pouring, allow foam to rise before spraying again. Depending on cavity configuration, pressure created is estimated at approximately 5 psi and temperature generated is over 200oF (93oC).
Troubleshooting
Foam colour is off-white when system is on ratio, When colour changes from off-white to dark brown or pure white, there′s a blockage in either the ′A′ or ′B′ component.
If colour indicates that the system is off ratio, remove nozzle and dispense system into a waste container. Check both orifices of the gun applicator to see if equal amounts are being dispensed. If equal amounts do not dispense, check each orifice for blockage. If a blockage is indicated, mechanically remove hardened material to clear blockage. If equal amounts are being dispensed, attach a new nozzle and begin spray.
Properties
Density ASTM D-1622: 1,75 + 0.2 pcf
K-Factor ASTM C-177: 0.144
R-Value ASTM C-177: 6.9/in
Compressive Strength ASTM D-1621
10%, parallel: 19 psi
10%, Perpendicular: 13.4 psi
Tensile Strength ASTM D-1623
Parallel: 34 psi
Perpendicular: 24.1 psi
Dimensional Stability ASTM D-2126
-40oF, 2-wks:
+0.88% vol. change
158oF, 100% RH 2-wks:
+14%, vol. change.
Water absorption ASTM D-2842
1-3.5%
Closed Cell Content ASTM D-2856
90%, min.
Shelf-Life: 18 months
Limited Warranty
This product is warranted to be free from defects. The Company shall not be liable for any consequential or other damage or remedy; its sole obligation and your exclusive remedy are limited to product replacement.
There are no warranties which extend beyond the description on the face of hereof.
Please read the following information very carefully
CAUTION
MAY CAUSE SKIN IRRITATION, EYE DAMAGE. HEAT/COMBUSTION RELEASES HAZARDOUS DECOMPOSITION PRODUCTS. VAPOUR HARMFUL. CONTENTS UNDER PRESSURE. ′A′ AND ′B′ TANKS MUST BE USED TOGETHER. Contains MDI Monomer and Chlorodifluoromethane. Do not puncture or incinerate tanks. Do not expose to heat or store at temperatures above 120oF (49oC). Do not store in vehicles or warehouses where temperatures may exceed 120oF (49oC). Ventilate work area with moving air: if not, wear suitable respiratory protection. Wear protective rubber gloves, coveralls, head covering, boots, face shield, and safety glasses. Remove wet foam immediately from skin with acetone. Dried foam is hard to remove from skin. If foam dries on skin, apply generous amounts of petroleum jelly or lanolin, leave for one hour, wash thoroughly, and repeat process until foam is removed. Do not attempt to remove cured foam with solvents. In case of eye contact, flush eye with water for 15 minutes and get immediate medical attention. The foam produced is combustible. Do not expose to heat, sparks or open flames. This product is not intended for use in applications where temperatures exceed 250oF (121oC). To avoid fire hazard after application, do not leave produce exposed or inadequately protected. Always protect foam with approved facings. THIS PRODUCT IS NOT A FIRE BARRIER PENETRATION SEALANT. KEEP OUT OF REACH OF CHILDREN . NOT FOR USE BY CHILDREN.
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