Intumescent Acrylic Sealant

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Pyroplex Intumescent Acrylic Sealant is a one-part high modulus, halogen free material. The product is primarily designed for use in internal application. It is suitable for perimeter pointing around services and for use in low movement linear joints in walls and floors.

Pyroplex Intumescent Sealant can provide up to 240 minutes fire resistance integrity depending on application and backing material required. The material is compatible with common building materials.

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Application: Linear gap joint – movement joints
Fire Resistance Period: up to 240 minutes
Insulation/integrity: Integrity and insulation depending upon backing materials
Test Standard: BS 476: Part 20/22, BS EN 1366-4
Approval Type: IFC Certificate No. IFCC1366, EN Classification: EN13501-2

Main Features Product Range Installation Instructions Testing & Certification Product Downloads

Main Features

Fire resistance up to 240 minutes.
Excellent adhesion with common building materials.
Movement capability ≤7.5%.
Cartridges and foil packs are fully recyclable.
Available in white. Other colours are available on request.
Internal use only.

Field of Application

Pyroplex Intumescent Sealant has been specifically designed for:

Sealing linear gap joint seals.
Sealing around plastic pipe or cable penetrations which have been protected with the recommended Pyroplex intumescent product eg. pipe collar, pipe wrap.

Product Range

Walls
Blockwork/Masonry/Concrete Walls 150mm thickness – EN1366-4

Joint Type	Joint Width [mm]	Joint Depth [mm]	Backing Materials	Backing Materials [Dimensions – mm]	Integrity [Mins]	Insulation [Mins]	Test Report No.
Single “Exposed”	50	20	Stone Wool (96kg/m³)	50 x 50	180	120	WF171926
Single “Unexposed”	40	10	Stone Wool (100kg/m³)	40 x 40	240	90	WF178415
Single “Unexposed”	10	10	Stone Wool (100kg/m³)	10 x 10	240	240	WF178415
Single “Unexposed”	35	10	Stone Wool (100kg/m³)	35 x 70	240	120	WF178415
Single “Unexposed”	40	10	Stone Wool (100kg/m³)	40 x 80	240	240	WF178415
Single “Unexposed”	20	10	Stone Wool (100kg/m³)	20 x 40	240	90	WF178415
Single “Unexposed”	10	10	Stone Wool (100kg/m³)	10 x 20	240	240	WF178415

Blockwork/Masonry/Concrete Walls 200mm thickness – EN1366-4

Joint Type	Joint Width [mm]	Joint Depth [mm]	Backing Materials	Backing Materials [Dimensions – mm]	Integrity [Mins]	Insulation [Mins]	Test Report No.
Single	10	10	PE Backing Rod	15mm ∅	240	180	WF166576
Single	20	20	PE Backing Rod	25mm ∅	240	90	WF166576
Single	30	25	PE Backing Rod	30mm ∅	240	60	WF166576
Double Sided	10	10	Stone Wool (90kg/m³)	10 x 10	240	240	WF166576
Double Sided	20	10	Stone Wool (100kg/m³)	20 x 10	240	240	WF166576
Double Sided	30	20	Stone Wool (100kg/m³)	20 x 40	240	240	WF166576

Floors
Blockwork/Masonry/Concrete Floors 150mm thickness – EN1366-4

Joint Type	Joint Width [mm]	Joint Depth [mm]	Backing Materials	Backing Materials [Dimensions – mm]	Integrity [Mins]	Insulation [Mins]	Test Report No.
Single “Exposed”	50	20	Stone Wool (96kg/m³)	50 x 50	120	120	WF171926
Single “Exposed”	10	10	Stone Wool (100kg/m³)	10 x 20	240	180	WF178415
Single “Unexposed”	10	10	Stone Wool (100kg/m³)	10 x 10	240	240	WF178415
Single “Exposed”	35	10	Stone Wool (100kg/m³)	35 x 70	240	240	WF178415
Single “Unexposed”	40	10	Stone Wool (100kg/m³)	40 x 80	240	90	WF178415
Single “Unexposed”	35	10	Stone Wool (100kg/m³)	35 x 70	240	120	WF178415
Single “Exposed”	10	10	Stone Wool (100kg/m³)	10 x 20	240	240	WF178415

• Mineral fibre min. density of 100kg/m³ = mineral fibre backing seal width x2.
• Refer to WF Report No. 178415 for further details regarding configuration and exposure conditions.

Installation Instructions

Intumescent Acrylic Double Sided Joint Illustration

For internal applications ensure that all the surfaces are clean, dry, sound and frost free. Clean all joints thoroughly to ensure that the adhesion of the silicone to the substrate is not impaired.
It may be necessary to mask adjacent areas to prevent contamination and to ensure a neat sealant line. Masking tapes should be immediately removed after tooling and finishing.
Install backing materials as required and fill the cavity with acrylic.
The joint should be tooled within 5 minutes of application to ensure good a contact between the acrylic and substrate, tooling of the sealant also gives a smooth and professional finish.
Dispose of spent cartridges in accordance with local regulations.

Testing

A number of independent fire resistance tests have been carried out to confirm the suitability of the product and to demonstrate product compliance by utilising BS EN 1366-4 and other international standards. Pyroplex Intumescent Sealant has a European Classification EN 13501-2.

Test Standard

Fire – BS 476: Part 20/22

Fire – BS EN 1366-4

Approval Type

IFC Certificate IFCC 1366

Product Downloads

Intumescent Sealant Technical Datasheet

Intumescent Sealant Installation Instructions

Intumescent Sealant Material Safety Datasheet