BS EN 17333-4:2020

What is BS EN 17333‑4 about?

BS EN 17333‑4 is the fourth part of the BS EN 17333 series of documents that specifies test methods for the evaluation of the mechanical properties for moisture curing, self-curing activatable, or water drying foams dispensed from single pressurized foam containers.

The following test methods are described:

• Method 1 – Compression strength: This test method describes how to determine the compressive strength of the cured foam. It gives an indication of the resistance of the foam against area distributed pressure. The maximum endurable stress is determined.
• Method 2 – Movement capability: This test method describes how to determine the movement capability of cured foam. The result gives an indication of the degree of flexibility of the cured foam.
• Method 3 – Bonding strength: The method displays the measurement of the bonding power of One Component (Foam) Adhesive, dispensed from a pressurized foam container, between two substrates with direct contact.
• Method 4 – Tensile strength: This test method describes how to determine the maximum stress a cured foam can withstand while being stretched before breaking. The result gives an indication of the elasticity of the cured foam.
• Method 5 – Shear strength: This method displays the behaviour of a foam system towards shear forces. It shows the strength and the bonding power of the foam as the sandwich element between wooden plates. The test is conducted according to EN 12090.

NOTE: BS EN 17333‑4 does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this document to establish appropriate safety and health practices and determine the applicability of regulatory requirements prior to use.

Who is BS EN 17333‑4 for?

BS EN 17333‑4 on mechanical properties for the moisture is useful for:

• Builders
• Manufacturers of one component foam
• Manufacturers of thermal and sound insulating materials

Why should you use BS EN 17333‑4?

One component foam is a moisture curing or water drying foam as well as self-curing activatable foam dispensed from a single pressurised foam container.

BS EN 17333‑4 provides the test methods for the evaluation of the mechanical properties of one component foam.

BS EN 17333‑4 gives you the measurements and determination of cured foam to ensure its compressive strength, movement capability, bonding strength, tensile strength, and shear strength.

Overall, these test methods allow you to make use of one component foam for your building construction to seal and dampen partition walls and to ensure its flexibility and non-fibrous properties that make it an ideal thermal and acoustic insulator.