Expanding foam - Revision history

Designing Buildings at 07:34, 7 October 2020

2020-10-07T07:34:45Z

← Older revision		Revision as of 07:34, 7 October 2020
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		+	[[File:Fillers.png]]
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	= Introduction =		= Introduction =

	Sealants are typically used to close openings between spaces that are too small for other materials such as concrete, timber or mortar to be used. They have a wide range of properties in terms of strength, flexibility, appearance permanence, solubility, corrosion resistance and so on.		Sealants are typically used to close openings between spaces that are too small for other materials such as concrete, timber or mortar to be used. They have a wide range of properties in terms of strength, flexibility, appearance permanence, solubility, corrosion resistance and so on.

−	Expanding foam filler is a common type of polyurethane ~~sealant~~. It can be sprayed into gaps such as those around windows and doors to stop draughts, fill gaps and dampen sound. It is designed to adhere to a variety of common building materials and can be water resistant.	+	Expanding foam filler is a common type of polyurethane filler. It can be sprayed into gaps such as those around windows and doors to stop draughts, fill gaps and dampen sound. It is designed to adhere to a variety of common building materials and can be water resistant.

	= Expanding foam characteristics =		= Expanding foam characteristics =

Designing Buildings at 07:33, 7 October 2020

2020-10-07T07:33:18Z

← Older revision		Revision as of 07:33, 7 October 2020
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		+	= Introduction =
		+
	Sealants are typically used to close openings between spaces that are too small for other materials such as concrete, timber or mortar to be used. They have a wide range of properties in terms of strength, flexibility, appearance permanence, solubility, corrosion resistance and so on.		Sealants are typically used to close openings between spaces that are too small for other materials such as concrete, timber or mortar to be used. They have a wide range of properties in terms of strength, flexibility, appearance permanence, solubility, corrosion resistance and so on.

−	Expanding foam filler ~~(also known as insulation foam)~~ is a common type of polyurethane sealant. It can be sprayed into gaps around windows and doors to stop draughts, fill gaps and dampen sound. ~~They are~~ designed to adhere to a variety of common building materials and ~~are~~ water resistant.	+	Expanding foam filler is a common type of polyurethane sealant. It can be sprayed into gaps such as those around windows and doors to stop draughts, fill gaps and dampen sound. It is designed to adhere to a variety of common building materials and can be water resistant.

	= Expanding foam characteristics =		= Expanding foam characteristics =
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	* Purpose of application: Filling voids or securing materials through adhesion (these foams have a lower expansion rate).		* Purpose of application: Filling voids or securing materials through adhesion (these foams have a lower expansion rate).

−	~~Spray~~ foam filler is ~~a polyurethane product~~ made up of materials that expand under different conditions, depending on ~~their~~ composition. One type of expanding polyurethane foam requires moisture in order to expand, which can make it sticky during the installation process. Another begins to expand when two different chemicals are ~~properly~~ mixed together. Dampening the surface that will be treated can help the foam set more quickly.	+	Expanding foam filler is made up of materials that expand under different conditions, depending on its composition. One type of expanding polyurethane foam requires moisture in order to expand, which can make it sticky during the installation process. Another begins to expand when two different chemicals are mixed together. Dampening the surface that will be treated can help the foam set more quickly.

	There are several differences between types of foam which should be clearly marked on the containers:		There are several differences between types of foam which should be clearly marked on the containers:
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	* Indoor or outdoor use.		* Indoor or outdoor use.
	* Sandable or paintable.		* Sandable or paintable.
−	* Presence of ~~H-CFCs~~ or CFCs.	+	* Presence of HCFCs or CFCs (no longer permitted).
	* Gun grade or handheld.		* Gun grade or handheld.

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	Basic foams can be flammable and may create toxic smoke if they are exposed to fire. There are some foams that can resist fire for a certain time when directly exposed to flames.		Basic foams can be flammable and may create toxic smoke if they are exposed to fire. There are some foams that can resist fire for a certain time when directly exposed to flames.

−	Cured foam should be protected from daylight or other light since this can degrade the effectiveness of the product over time. Dried foam can be painted to protect it from light.	+	Cured foam should be protected from daylight or other light since this can degrade the effectiveness of the product over time. Dried foam can be painted, or otherwise covered, to protect it from light.

−	Expanding foam should be used relatively quickly once a can or gun is started, since the chemicals may not retain their effectiveness over time. It can also be difficult to remove or clean foam. There is a special type of chemical that can be used to clean wet foam, ~~although~~ in some instances, acetone can be used.	+	Expanding foam should be used relatively quickly once a can or gun is started, since the chemicals may not retain their effectiveness over time. It can also be difficult to remove or clean foam. There is a special type of chemical that can be used to clean wet foam, and in some instances, acetone can be used.

	= Related articles on Designing Buildings Wiki =		= Related articles on Designing Buildings Wiki =

Editor at 10:49, 6 October 2020

2020-10-06T10:49:43Z

← Older revision		Revision as of 10:49, 6 October 2020
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−	~~[[File:ExpandingFoam.jpg\|link=File:ExpandingFoam.jpg]]~~
−
	Sealants are typically used to close openings between spaces that are too small for other materials such as concrete, timber or mortar to be used. They have a wide range of properties in terms of strength, flexibility, appearance permanence, solubility, corrosion resistance and so on.		Sealants are typically used to close openings between spaces that are too small for other materials such as concrete, timber or mortar to be used. They have a wide range of properties in terms of strength, flexibility, appearance permanence, solubility, corrosion resistance and so on.

Editor at 18:20, 5 October 2020

2020-10-05T18:20:09Z

← Older revision		Revision as of 18:20, 5 October 2020
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−	[[File:ExpandingFoam.jpg]]	+	[[File:ExpandingFoam.jpg\|link=File:ExpandingFoam.jpg]]

	Sealants are typically used to close openings between spaces that are too small for other materials such as concrete, timber or mortar to be used. They have a wide range of properties in terms of strength, flexibility, appearance permanence, solubility, corrosion resistance and so on.		Sealants are typically used to close openings between spaces that are too small for other materials such as concrete, timber or mortar to be used. They have a wide range of properties in terms of strength, flexibility, appearance permanence, solubility, corrosion resistance and so on.
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	* Type of application: handheld dispenser or gun grade applicator.		* Type of application: handheld dispenser or gun grade applicator.
−	* Purpose of application: Filling voids or ~~fixing~~ materials through adhesion (these foams have a lower expansion rate).	+	* Purpose of application: Filling voids or securing materials through adhesion (these foams have a lower expansion rate).

	Spray foam filler is a polyurethane product made up of materials that expand under different conditions, depending on their composition. One type of expanding polyurethane foam requires moisture in order to expand, which can make it sticky during the installation process. Another begins to expand when two different chemicals are properly mixed together. Dampening the surface that will be treated can help the foam set more quickly.		Spray foam filler is a polyurethane product made up of materials that expand under different conditions, depending on their composition. One type of expanding polyurethane foam requires moisture in order to expand, which can make it sticky during the installation process. Another begins to expand when two different chemicals are properly mixed together. Dampening the surface that will be treated can help the foam set more quickly.

Editor at 18:03, 5 October 2020

2020-10-05T18:03:53Z

← Older revision		Revision as of 18:03, 5 October 2020
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		+	[[File:ExpandingFoam.jpg]]
		+
	Sealants are typically used to close openings between spaces that are too small for other materials such as concrete, timber or mortar to be used. They have a wide range of properties in terms of strength, flexibility, appearance permanence, solubility, corrosion resistance and so on.		Sealants are typically used to close openings between spaces that are too small for other materials such as concrete, timber or mortar to be used. They have a wide range of properties in terms of strength, flexibility, appearance permanence, solubility, corrosion resistance and so on.

Editor at 17:56, 5 October 2020

2020-10-05T17:56:42Z

← Older revision		Revision as of 17:56, 5 October 2020
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	* Draught proofing buildings		* Draught proofing buildings
	* Draughts in buildings.		* Draughts in buildings.
−	* Fillers for construction	+	* Fillers for construction.
		+	* Insulation.
		+	* Polyurethane in construction.
		+	* Polyurethane spray foam in structurally insulated panels and composite structures.
	* Sealants in construction		* Sealants in construction

	[[Category:DCN_Product_Knowledge]] [[Category:Products_/_components]]		[[Category:DCN_Product_Knowledge]] [[Category:Products_/_components]]

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2020-10-05T17:53:02Z

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Sealants are typically used to close openings between spaces that are too small for other materials such as concrete, timber or mortar to be used. They have a wide range of properties in terms of strength, flexibility, appearance permanence, solubility, corrosion resistance and so on.

Expanding foam filler (also known as insulation foam) is a common type of polyurethane sealant. It can be sprayed into gaps around windows and doors to stop draughts, fill gaps and dampen sound. They are designed to adhere to a variety of common building materials and are water resistant.

= Expanding foam characteristics =

Foams can be divided into two different ways: type and purpose.

* Type of application: handheld dispenser or gun grade applicator.
* Purpose of application: Filling voids or fixing materials through adhesion (these foams have a lower expansion rate).

Spray foam filler is a polyurethane product made up of materials that expand under different conditions, depending on their composition. One type of expanding polyurethane foam requires moisture in order to expand, which can make it sticky during the installation process. Another begins to expand when two different chemicals are properly mixed together. Dampening the surface that will be treated can help the foam set more quickly.

There are several differences between types of foam which should be clearly marked on the containers:

* Indoor or outdoor use.
* Sandable or paintable.
* Presence of H-CFCs or CFCs.
* Gun grade or handheld.

= Possible dangers of expanding foam =

It’s important to proceed with caution with the application process, since the chemicals can be toxic if they are not used properly. However, the substance should be safe once it has fully expanded and dried.

Basic foams can be flammable and may create toxic smoke if they are exposed to fire. There are some foams that can resist fire for a certain time when directly exposed to flames.

Cured foam should be protected from daylight or other light since this can degrade the effectiveness of the product over time. Dried foam can be painted to protect it from light.

Expanding foam should be used relatively quickly once a can or gun is started, since the chemicals may not retain their effectiveness over time. It can also be difficult to remove or clean foam. There is a special type of chemical that can be used to clean wet foam, although in some instances, acetone can be used.

= Related articles on Designing Buildings Wiki =

* Draught proofing buildings
* Draughts in buildings.
* Fillers for construction
* Sealants in construction

[[Category:DCN_Product_Knowledge]] [[Category:Products_/_components]]