Protecta FR ASF 4hr Intumescent Sealant is designed to prevent the spread of fire, smoke and gases through openings in fire rated walls and floors, specifically linear joints and openings for building service penetrations. 4-hour rated, the intumescent sealant is formulated with fillers that provide noise reduction.

Protecta FR ASF 4hr Intumescent Sealant should be applied over suitable backing materials to ensure correct width to depth ratio and to reduce shrinkage of the joint during hardening. In areas with a high degree of humidity and/or in joints with excessive movement, use Protecta FR IPT.

The intumescent sealant cures when it is subjected to atmospheric conditions, however it will retain a degree of elasticity for joint movement. Under fire exposure, it creates a robust fire seal by the formation of a durable intumescent char.

The sealant has undergone tests to BS476: Part 20:1987 and BSEN 1366-3 with additional guidelines from BSEN 1366-4 for fire protection joints and testing in accordance with BS EN ISO 140-3:1995 for acoustic performance.

NEW - Eco-Foil System

The system works by inserting a 300ml foil into the reusable Eco-Cartridge, which fits into a standard skeleton gun. The cartridge has a double-ended plunger, so once the foil is empty, remove the cap and nozzle and re-fill the opposite end with a new 300ml foil. Simply replace the cap and nozzle at the opposite end, insert into the dedicated foil gun and the system is ready for use!

• One Eco-Cartridge can be reused a minimum of 60 times
• Reduces on-site waste by more than 90%
• The system fits into a standard skeleton gun
• 6 months longer shelf life than the same product in a cartridge

Features & Benefits

• Fire rated in both horizontal & vertical joints
• Provides up to 4 hours of fire protection
• No priming required for most construction substrates
• Formulated with fillers to help noise reduction
• Joint movement capability of 7.5%
• For use in joints up to 50 mm wide
• Excellent slump resistance
• 18 months shelf life
• Fast cure - tack free within an hour
• Easy to apply and tool off
• Halogen free
• Paintable
• Excellent adhesion to most common building substrates
• Reduces sound transmission in joints
• UL-EU Certificate No. UL-EU-00871
• Tested to BS476: Part 20:1987 and BSEN 1366-3
• Additional guidelines from BSEN 1366-4 for fire protection joints
• Tested in accordance with BS EN ISO 140-3:1995 for acoustic performance

Protecta FR ASF 4hr Intumescent Sealant complies with the requirements of GEV and the results correspond to the EMICODE emission class EC 1PLUS which is the best possible environmental and indoor hygiene health protection mark. Tested by Eurofins Product Testing, report number G12870B

Ordering References

Product Data

Installation

1. Before installing Protecta FR ASF 4hr Intumescent Sealant, ensure that the surface of all service penetrations and surrounding construction is free from all loose contaminants, dust and grease.
2. Where Protecta FR ASF is to be installed against surfaces that cannot tolerate direct contact, appropriate surface preparation should be taken (contact Polyseam or Rawlins Technical 0113 2455450 (option2 ) or [email protected]) for guidance in these cases). For paints sensitive to sealing compounds, priming with a PVA primer is recommended.
3. As Protecta FR ASF is water based, in cases where corrosion protection is a problem, some metals may require a barrier between the sealant and the metal surface prior to this installation.
4. When installing the sealant in gypsum boards, the exposed edges of the board can be wetted with water, or Protecta FR ASF diluted with water to prime the surfaces helping adhesion and preventing excessive joint shrinkage.
5. When installing Protecta FR ASF in hollow floor slabs or boards, fire seals specified as single sided should be installed from the soffit side of the floor assuming there is sufficient thickness of concrete below the void to follow the installation guide. Where this is not the case, tubular voids should be filled with stone wool normally the same thickness as the depth of the floor slab. Alternatively, simply fire seal on both sides.
6. Make sure that the gap to be sealed is wide enough to accomodate the correct backing material where specified. In practice, this should not be less than 10mm.
7. When installing any backing material, cut this slightly oversize and insert into the gap ensuring a tight friction fit. Ensure correct depth is achieved.
8. Fill the gap or joint with Protecta FR ASF to the required depth. Refer to the tables on the left for guidance on joint design/dimensions. If installation does not have to meet any specific fire specification, it is recommended that a width to depth ratio of 2:1 is utilized, with a minimum depth of 12mm of sealant.
9. Apply the sealant generously to prevent air bubbles. Finish the bead with a moist spatula, pallet knife or brush.
10. Protecta FR ASF can be overpainted with most emulsion or alkyd (gloss) paints.
11. When fire sealing shaft walls consisting of gypsum only on one side, subject to authority approval, install Protecta FR ASF on the exposed side following the instructions for gypsum wall installation. The sealant should be facing the (fire) exposed side.

Emission Data (Indoor Air Quality)

Fire Classification Data

Supporting construction:

Flexible walls ≥ 100mm must have minimum 2 layers of 12.5 mm thick Type F gypsum board on both sides of 50mm deep steel studs. Flexible walls ≥ 130mm must have minimum 2 layers of 15 mm thick Type F gypsum board on both sides of 70mm deep steel studs, with no cavity insulation. Rigid walls and floors must comprise concrete, aerated concrete or masonry, with a minimum density of 650 kg/m³. The service support must be classified in accordance with EN 13501-2 for the required fire resistance period.

IMPORTANT FIRE PRODUCTS NOTICE: The information displayed on this website should be used as a guide ONLY and our Technical Department should be contacted to obtain a tailored specification and any advice necessary before you place an order for fire protection products. Fire protection products are non-returnable except in accordance with Condition 8 of the Terms and Conditions and should be applied only by an individual with the necessary expertise and experience. We will not be held liable for any resulting damage to property, human life or monetary costs incurred due to the incorrect specification you have prepared or use of fire protection products caused by your negligence, including your failure to have contacted us to obtain the relevant advice/specification.