BUTYL MASTIC 1185

What is Bostik BUTYL MASTIC 1185 and why choose it

Bostik BUTYL MASTIC 1185 is a preformed thermoplastic butyl mastic with high surface tack, designed for sealing joints that do not require high mechanical strength. Permanently moldable and solvent-free, it offers excellent water vapour tightness, very good adhesion to most substrates and long-term resistance to weathering. It is suitable for both interior and exterior applications in construction, nautical environments, plumbing and HVAC.

Main features

• Permanently moldable with persistent tack.
• Hardens at low temperatures and becomes softer and more tacky at higher temperatures.
• Resistant to ageing and atmospheric conditions from -30 ºC to +90 ºC.
• Stable in fresh and salt water within a pH range of 5 to 9.
• Good water vapour tightness.
• Good adhesion to most substrates.
• No odour at room temperature.
• Solvent-free formulation.
• Does not lose volume over time.
• Provides corrosion protection on metal joints.
• Helps dampen sound and vibrations.
• Supplied as a preformed roll for quick, clean application.

Technical specifications

• Base: Synthetic rubber (IIR/PIB).
• Density (picnometer, 23 ºC): 1.35 – 1.45 g/ml (DIN 53217).
• Penetration (150 g, cone, 20 ºC, 5 s): 40 – 60 1/10 mm (DIN 51580).
• Melt index (140 ºC, 5 kg, 2 mm nozzle): 60 – 80 ml/10 min (DIN ISO 1133).
• Softening point (Ring & Ball, glycerol): > 160 ºC (DIN 52011).
• Peel strength at 180ºC: > 1 N/mm.
• Physical state: Solid, preformed profiles, grey colour.
• Water solubility: Insoluble.
• Solid content: 100 %.
• Recommended storage temperature: 5 – 35 ºC.
• Minimum shelf life in unopened original packaging: 24 months.
• Formats:
  • Grey – reel, 6 mm diameter – 6 m (Code 30817042).
  • Grey – reel, 25 x 2 mm – 26 m (Code 30817044).

Applications and uses

General recommended uses

• Sealing joints that do not require high mechanical resistance.
• Interior and exterior applications.
• Temporary fixing and repair work.
• Corrosion protection in metal joints.
• Sound and vibration damping.

Construction

• Sealing around windows.
• Wall claddings.
• Waterproofing under tiles, foundations, flat roofs and pitched roofs.
• Sealing of built-in appliances and roofs.
• Vapour barriers.

Nautical

• Sealing and waterproofing of cargo holds.
• Repair and maintenance tasks.
• Sealing and insulation of structural parts.

Plumbing and HVAC

• Joining air-conditioning ducts.
• Wrapping and sealing of pipes.

Substrates and compatibility

• Good adhesion to most common substrates (specific materials not detailed).
• In contact with plastic materials, migration of plasticisers may occur; application tests are recommended before use.
• Not resistant to oil, grease, white spirit and other solvents.

Application instructions

Surface preparation

• Surfaces must be cleaned as thoroughly as possible.
• They must be dry and free from dust, oils or greases.

Application method

1. Apply the mastic directly from the roll onto one of the joint surfaces.
2. Cut the required length according to the application and remove the protective paper.
3. Press the two surfaces together; using a roller improves contact.

Cleaning

• Remove excess material mechanically.
• Residues can be cleaned with white spirit.

Storage recommendations

• Store for up to 24 months in the original unopened packaging.
• Keep under low humidity conditions.
• Protect from mechanical deformation and dust.

Section 8 – Personal protective measures

Information based on the Safety Data Sheet for BUTYL 1185 grey.

• General hygiene:
  • Do not eat, drink or smoke while using the product.
  • Wash hands before breaks and after finishing work.
  • Remove contaminated clothing and wash before reuse.
• Eye and face protection:
  • Wear safety glasses with side shields or goggles.
  • Eye protection must conform to EN 166.
• Hand protection: Hand protection is not required according to the Safety Data Sheet.
• Skin and body protection: Wear suitable protective clothing.
• Respiratory protection: Ensure adequate ventilation, especially in confined areas.
• Environmental protection: Do not allow uncontrolled discharge into drains, soil or the environment.

Section 14 – Transport information

According to the Safety Data Sheet for BUTYL 1185 grey:

• UN number / ID number: Not regulated.
• UN proper shipping name: Not regulated.
• Transport hazard class(es): Not regulated.
• Packing group: Not regulated.
• Environmental hazards: Not applicable; not classified as a marine pollutant.
• Special precautions for user: None.
• Applicable transport modes:
  • ADR/RID (road/rail): Not regulated.
  • IMDG (sea): Not regulated.
  • ICAO-TI / IATA-DGR (air): Not regulated.
• Bulk transport according to MARPOL/IBC: Not applicable.

FAQ – BUTYL MASTIC 1185

1. Is BUTYL MASTIC 1185 suitable for outdoor use?

   Yes. It is resistant to ageing and atmospheric conditions between -30 ºC and +90 ºC and is suitable for exterior applications.

2. Can it be used in contact with water or in humid environments?

   Yes. The mastic is stable in water and salt water within a pH range of 5 to 9 and offers good water vapour tightness.

3. On which types of substrates does it adhere well?

   It shows good adhesion to most substrates. For plastic materials, plasticiser migration may occur, so prior tests are recommended.

4. Is BUTYL MASTIC 1185 solvent-free and odourless?

   Yes. The product is solvent-free and has no odour at room temperature.

5. Can it be used where high mechanical strength is required?

   No. It is intended for sealing joints that do not require high mechanical resistance.

6. What temperatures can the product withstand once applied?

   It is resistant to atmospheric conditions in the range of -30 ºC to +90 ºC.

7. How should surfaces be prepared before applying the mastic?

   Surfaces must be clean, dry and free of dust, oils or grease before application.

8. How long can I store BUTYL MASTIC 1185?

   It can be stored for at least 24 months in its original unopened packaging under conditions of low humidity and protected from mechanical deformation and dust.

9. Is it classified as hazardous for transport?

   No. It is not regulated as a dangerous good for road, rail, sea or air transport.

10. Is any special personal protective equipment mandatory?

    The Safety Data Sheet indicates that hand protection is not required, but adequate ventilation and the use of safety glasses with side shields and suitable protective clothing are recommended.

*Contenido generado por IA