What it is and why choose it
3M™ SCOTCH-WELD™ SPRAY 77 REPOSITIONABLE is a colourless, sweet-odour, aerosol adhesive designed for spray application. Supplied in a pressurised can, it delivers a fine, even spray pattern suitable for industrial and professional use where a fast, repositionable adhesive film is required. Its formulation is classified as an extremely flammable aerosol and is intended for controlled environments that can ensure adequate ventilation and personal protection.
Main characteristics
- Type of product: Aerosol Adhesive.
- Physical form: Liquid adhesive in aerosol format.
- Colour: Colourless.
- Odour: Sweet odour.
- Extremely flammable: Classified as Aerosol Category 1 (H222); pressurised container that may burst if heated (H229).
- Skin irritation potential: Classified as Skin Irrit. 2 (H315) – may cause redness, itching, and dryness on contact.
- Specific target organ toxicity (single exposure): STOT SE 3 (H336) – vapours may cause drowsiness or dizziness due to central nervous system depression.
- Environmental classification: Aquatic Chronic 2 (H411) – toxic to aquatic life with long lasting effects.
- Viscosity: Kinematic viscosity of approximately 286 mm²/s.
- Volatile content: Approximately 75% volatiles.
- Density: ≤ 0.7 g/ml (relative density approximately 0.7 compared to water).
- Flash point: −42°C (closed cup, propellant conditions).
- No aspiration hazard classification: Overall product not classified for aspiration due to kinematic viscosity.
- Key components: Hydrocarbons C7 n-alkanes/isoalkanes/cyclics, dimethyl ether, propane, cyclohexane, pentane, butane/isobutane, thermoplastic resin and polymeric resins.
Technical specifications
- Product type: Aerosol Adhesive (spray).
- Physical state: Liquid.
- Specific physical form: Aerosol.
- Colour: Colourless.
- Odour: Sweet odour.
- pH: Substance/mixture is non-polar/aprotic.
- Melting/freezing point: Not applicable.
- Boiling range: Not applicable.
- Flammability: Flammable Aerosol Category 1.
- Flash point: −42°C (closed cup, propellant).
- Auto-ignition temperature: No data available.
- Decomposition temperature: Not applicable.
- Kinematic viscosity: 286 mm²/s.
- Water solubility: No data available.
- Non-water solubility: Not applicable.
- Partition coefficient n-octanol/water: No data available.
- Vapour pressure: Not applicable (aerosol mixture).
- Density: ≤ 0.7 g/ml.
- Relative density: Approximately 0.7 (water = 1).
- Relative vapour density: No data available.
- Percent volatile: Approximately 75%.
- EU VOC: No data available.
- Stability: Stable under recommended storage and handling conditions; hazardous polymerisation will not occur.
- Conditions to avoid: Heat, sparks, open flames and other ignition sources; temperatures above 50°C/122°F; strong acids and strong oxidising agents.
- Disposal recommendation: Incinerate in a permitted waste incineration facility capable of handling aerosol cans or use an authorised waste disposal facility. Empty containers should be managed as hazardous waste unless regulations specify otherwise.
- Waste codes (EU):
- Product as sold: 08 04 09* (waste adhesives and sealants containing organic solvents or other dangerous substances)
- Product as sold: 16 05 04* (gases in pressure containers containing dangerous substances)
- Container after use: 15 01 04 (metallic packaging)
- Additional technical data: Consultar ficha técnica del fabricante.
Applications and use cases
- Identified use: Aerosol adhesive for spray application.
- Industrial use of adhesives and sealants: For application via industrial spraying (PROC 7, 10, 11, 13) in controlled environments with appropriate ventilation and risk management.
- Industrial use of coatings: Can be used as part of coating processes, including spraying of substances/mixtures in industrial settings.
- Professional use of adhesives: Widespread use by professional workers for non-industrial spraying, both indoors and outdoors, within the recommended operating and safety conditions.
- Professional use of coatings: Suitable for professional, non-industrial spraying of coatings where an aerosol adhesive system is required.
- Recommended environments: Indoor and outdoor use at up to 20°C above ambient temperature, with appropriate ventilation and control of ignition sources.
- Use limitations: Do not use in confined areas with minimal air exchange; avoid release to the environment and to drains or waterways.
FAQ
1. What type of adhesive is 3M™ SCOTCH-WELD™ SPRAY 77 REPOSITIONABLE?
It is an aerosol adhesive supplied as a colourless, sweet-odour liquid in a pressurised spray can, designed for industrial and professional spray applications.
2. Is this product flammable?
Yes. It is classified as an extremely flammable aerosol (Aerosol 1, H222) and is supplied in a pressurised container that may burst if heated (H229). It must be kept away from heat, hot surfaces, sparks, open flames and any ignition source. No smoking.
3. What are the main health hazards?
The product can cause skin irritation (H315) and its vapours may cause drowsiness or dizziness due to central nervous system depression (H336). High vapour concentrations can displace oxygen and may cause rapid suffocation in poorly ventilated areas.
4. Is the product hazardous to the environment?
Yes. It is classified as Aquatic Chronic 2 (H411), toxic to aquatic life with long lasting effects. Avoid release to the environment and prevent entry into drains, sewers, or natural water bodies.
5. How should I store the cans?
Store in a well-ventilated place, away from heat sources, acids, and oxidising agents. Protect from sunlight and do not expose to temperatures exceeding 50°C/122°F. Keep the container tightly closed to prevent loss of stabilising materials and store out of reach of children.
6. What should I do if the product is inhaled?
Remove the person to fresh air and obtain medical attention. Do not remain in areas where available oxygen may be reduced.
7. What should I do in case of skin or eye contact?
For skin contact, wash immediately with soap and water and remove contaminated clothing. For eye contact, rinse with plenty of water, remove contact lenses if easy to do, and continue rinsing. Seek medical attention if symptoms develop.
8. Can it be used in confined spaces?
It should not be used in confined areas with minimal air exchange. Adequate general dilution or local exhaust ventilation is required to keep airborne concentrations below occupational exposure limits.
9. How should spills or leaks be handled?
Evacuate the area, eliminate ignition sources and ventilate with fresh air. Contain the spill and absorb with inorganic absorbent (e.g. bentonite, vermiculite). Collect using non-sparking tools into an approved metal container and dispose of as hazardous waste. Avoid release to the environment.
10. How do I dispose of empty cans and unused product?
Dispose of contents and containers in accordance with local, regional, national and international regulations. Incineration in a permitted facility capable of handling aerosol cans is recommended, or use an authorised waste disposal facility.
Section 14 – Transport information
- UN number / ID number: UN1950.
- UN proper shipping name (ADR): AEROSOLS (EPICHLOROHYDRIN-PHENOL-FORMALDEHYDE RESIN).
- UN proper shipping name (IATA): AEROSOLS, FLAMMABLE (EPICHLOROHYDRIN-PHENOL-FORMALDEHYDE RESIN).
- UN proper shipping name (IMDG): AEROSOLS (EPICHLOROHYDRIN-PHENOL-FORMALDEHYDE RESIN).
- Transport hazard class: 2.1 (flammable gas/aerosol) for ADR, IATA and IMDG.
- Packing group: No data available.
- Environmental hazards:
- ADR (ground transport): Environmentally hazardous.
- IATA (air transport): Not applicable.
- IMDG (marine transport): Marine Pollutant.
- ADR classification code: 5F.
- IMDG segregation code: None.
- Bulk transport under IMO instruments: No data available.
- Temperature control (control/emergency temperatures): No data available.
- Additional transport guidance: Refer to the Safety Data Sheet for further information and for transport by rail (RID) or inland waterways (ADN).
Section 8 – Personal protective measures
Engineering controls
- Do not remain in areas where available oxygen may be reduced.
- Use general dilution ventilation and/or local exhaust ventilation to control airborne levels of vapours or spray below relevant occupational exposure limits.
- If ventilation is inadequate, use suitable respiratory protective equipment.
Eye and face protection
- Use indirect vented goggles to prevent eye contact with spray and vapours.
- Eye protection should conform to EN 16321.
Skin and hand protection
- Wear chemical-resistant gloves and protective clothing approved to relevant local standards to prevent skin contact.
- Recommended glove material: polymer laminate, thickness > 0.3 mm, with breakthrough time ≥ 8 hours (under test conditions).
- Gloves should be tested to EN 374. Nitrile gloves may be worn over polymer laminate gloves to improve dexterity.
- Choose protective clothing based on exposure level, concentration, frequency and duration of use, and physical conditions such as temperature.
Respiratory protection
- Conduct an exposure assessment to determine if respirators are required.
- If needed, use a half-facepiece or full-facepiece air-purifying respirator suitable for organic vapours and particulates, or a supplied-air respirator.
- Use respirators in accordance with a complete respiratory protection program.
- Organic vapour cartridges may have a short service life and should be replaced according to the manufacturer’s guidance.
- Respirators must conform to EN 140 or EN 136, with filter types A and P as applicable.
Environmental exposure controls
- Avoid release to the environment and follow the waste management measures described in the Safety Data Sheet.
- Further details are provided in the SDS annex under exposure scenarios.
*Contenido generado por IA
