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PyroPro® LST Fire Resistant Sealant

Verified by manufacturer 2 months ago

FSi Limited

A water based, acrylic, ablative sealant.

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+44 (0)1530 515130 Website

Application

Application / use:

  • Authorized for use on the London Underground network.
  • To reinstate fire resistance through rigid floors.
  • To reinstate fire resistance through rigid and flexible walls.
  • Linear construction joints.
  • Single service penetrations.
  • Multi-service penetrations.
  • Blank openings.

Description

PyroPro® LST Fire Resistant Sealant is a water based, acrylic, ablative sealant used to reinstate the fire resistance of wall and floor constructions in linear gap seals and where apertures are penetrated by single or multiple services. PyroPro® LST is authorised for use on the London Underground network, and other underground/ tunnel networks.

General information

Color

White

Grey

Other

Guidance for specification option:

Other colours available on request, consult manufacturer.

Material

Acrylic

Guidance for specification option:

Water based acrylic sealant.

Uniclass

Pr_30_31_76_02 Acrylic construction joint sealantsPrimary

CAWS

F30/610 Movement joints with sealant

F30/670 Head of non-loadbearing walls

F30/76 Movement joints with sealant

K10/125 Metal stud partition system

K10/15 Lining on timber

K10/155 Wall lining system (metal studs)

K10/165 Wall lining system (metal framing)

K10/175 Wall lining system (metal furrings)

K10/185 Wall lining system (adhesive)

K10/205 Lining on timber

K10/215 Suspended ceiling system

K10/220 Proprietary suspended ceiling system

K10/245 Ceiling lining on timber

K10/25 Ceiling lining on timber

K10/30 Metal stud

K10/35 Wall lining system (metal framing)

K10/41 Wall lining system (metal furrings)

K10/45 Wall lining system (adhesive)

M20/653 Sealant movement joints with stop bead edgings

P12/390 Sealant

P12/47 Sealant

P12/48 Sealant – fire-resisting acrylic

P31/40 Sealing around services

P31/710 Sealing

Product range

Sealants

Specification data - Acrylic construction joint sealants

Standard

To BS 6853 D8.3:1999 A, BS 6853: 1999 Annex B.1, BS EN ISO 4589-2: 1999; BS EN ISO 4589-3: 1996.

Third party certification

CE mark ETA-20/1004, ETA-20/1005; ISO 9001: 11378.

Sealant type

Water based acrylic sealant.

Colour

White.

Grey.

Other.

Guidance for specification option:

Consult manufacturer for other colour options.

Fire performance

To BS EN 1366-3:2009 and BS EN 1366-4:2006.

Guidance for specification option:

  • BS EN 1366-3:2009 Fire resistance tests for service installations: Penetration seals: see APPROVED FSI DETAILS for fire resistance performance.
  • BS EN 1366-4:2006 Fire resistance tests for service installations: Linear joint seal: see APPROVED FSI DETAILS for fire resistance performance .


Air permeability

To BS EN 1026:2000, 600 Pa.

Guidance for specification option:

BS EN 1026:2000 Windows and doors.

Air permeability test method tested at 600 Pa (contact technical@fsiltd.com for details).

Density

~1.61 g/cm³.

Drying time

~40 minutes (23°C and 50% relative humidity).

Application temperature

+5°C to +35°C.

Guidance for specification option:

For unopened material, store in a well-ventilated, dry, cool environment. Recommended temp ranges +5°C to +35°C. Protect against exposure to direct sunlight. Always ensure that safe manual handling procedures are followed at all times.

Shelf life

18 months.

Guidance for specification option:

If stored in accordance with storage conditions.

Chemical resistance

-

Manufacturer guidance

Not to be used where joints are to be constantly immersed in water. Do not use on substrates that are likely to release solvents, oils or plasticizers. Not resistant to water, strong acids, strong bases, oxidizing agents (i.e hydrogen peroxide), alcohols, hydrocarbon solvents.

Shore A hardness

To BS ISO 7619-1:2010, 66/31 (1 second/ 5 seconds).

Manufacturer guidance

(28 days)

Mass

To ISO 10563:2005, 12–15%.

Guidance for specification option:

Determination of change in mass.

Volume

To ISO 10563:2005, 2–4%.

Guidance for specification option:

Determination of change in volume.

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