![]() When it comes to insulating around windows, choose low-expansion foam rather than high-expansion foam. Sealing gaps around windows is one of the main uses of expanding foam, but if the wrong type of foam is used, it can be difficult to open and close the window. DON’T apply maximum-expansion foam around windows. Spraying some expanding foam around the pipe will stabilize it and keep it from banging and rattling. If the noisy pipe is accessible, such as overhead in a basement, observe where the pipe is clanging while a friend or family member turns the water faucet on and then off. Water hammer occurs when the valve on a pressurized water line closes, causing built-up pressure in the pipe to shake the pipe, sometimes hard enough to slam it into nearby wall studs or other pipes and cause quite a racket. Photo: DO use expanding foam to silence noisy water pipes.Įxpanding foam isn’t just for stopping drafts and heat transfer-if you’ve purchased a can to seal some drafts and have a bit left over, it’s just the ticket for silencing noisy pipes and water hammer. Some types of insulation that are nonflammable, such as rock wool, are better suited for insulating around recessed can lights. Before adding any insulation around recessed lights, check whether the light is rated for safe contact with insulation. The area around a recessed can light is another common spot for heat loss, but if the light generates heat, using expanding foam can trap the heat and increase fire risk. Putting a small amount of fiberglass batt insulation around the box might be a better option. The foam expands quickly and can surround the wires entering the box, which makes it difficult, if not impossible, to change the wiring configuration in the outlet. In the quest for a draft-free home, it’s natural to want to add some insulation around electrical outlets, but expanding foam might not be the best type of insulation there. DON’T use expanding foam around outlets and recessed can lights. In rare cases, using an expired can of expanding foam may present a risk of explosion. Most of the time, using an old can of foam will result in lackluster performance-the foam will not expand to its typical size, or its components will be sticky and drippy and not expand as intended. Dispose of full or partially full cans in compliance with local regulations, which differ from state to state and community to community. Empty foam cans are not considered hazardous and can be tossed with household waste. Consumers should do the same-toss out a can of expanding foam if it’s past its expired date. The foam performs best when it’s fresh, and most retailers will remove cans of expired expanding foam from their shelves. In the can, expanding foam is a liquid containing polyurethane components that react when they come into contact with air, causing the liquid to expand. Make sure to inspect for defect(s) thoroughly before use.Photo: DO check the expiration date of the foam before you start spraying it. Kindly note this item is a consumable part, and not covered by warranty. ![]() Should damages found, please keep all packaging materials, take pictures, and report immediately to carrier/MTI. Please check package for damages before accepting delivery. Click to Watch the video "How to modify the thermal blocks".Click to Watch the video “How to insert and remove foam block for MTI furnaces”.Porous alumina block is very soft and it can be hand-drilled through easily. ![]() quartz (<1200 ✬) or alumina (<1700 ✬) tube to deliver gas into the furnace tube center. For direct delivery of precursor gasses over the heating zone, customer may drill a hole in the alumina block for sticking a 1/4" O.D.To prevent dust-falling issue and ensure a cleaning process, it is suggested to apply a thin layer of alumina adhesive material on the surface of the foam block.MTI corporation provides the high quality Alumina (Al 2O 3) foam block for high temperature tubing furnaces in universities, companies, and national labs. It comes with the specifications as the following: ![]()
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