Tesa 4338 Premium Crepe 50m
Colour: green
The tesa® 4338 is characterized by its distinctive, vibrant green color, making it particularly suitable for industries such as shipbuilding, commercial vehicles, aviation, and rail vehicle painting. Key requirements in these applications include a highly flexible backing material, precise paint edges, and a color that clearly contrasts with the surface.
The aging-resistant natural rubber adhesive provides very good initial adhesion and can remain on painted surfaces outdoors for up to one week. It is temperature-resistant up to 120°C and can be removed cleanly and residue-free after the painting and curing process.
Properties
- Paper masking tape
- Very good adhesion to paint and filler
- Backing: lightly creped paper
- Adhesive: natural rubber
- Color: green
- Thickness: 145 µm
- Heat resistance: up to 120°C (for 40 minutes)
Benefits
- High visibility thanks to its vibrant green color
- Excellent handling: easy and controlled unwinding, finger-friendly and conformable
- Suitable for multiple drying cycles – up to six cycles at 120°C for 40 minutes each
- Good initial adhesion for secure, long-term fixing of masking materials
- Clean and sharp paint edges
- Increased flexibility in production processes: UV resistance of up to 7 days allows painting operations to be interrupted and masked objects to be stored outdoors
Applications
- Masking during painting and drying processes at temperatures of up to 120°C
- Securing large film and paper masking materials on large objects
Processing and storage instructions:
Surface condition
Surfaces must be dry, free from dust, oil, oxides, release agents and other contaminants.
Surface cleaning
The following cleaning agents, for example, can be used to remove dust, oil, separating agents and other impurities:
Isopropanol/water 50/50
Heptane or ethanol
Acetone or MEK
Suitable other cleaning agents that do not leave any residues and do not attack the substrate.
Temperature
The most favourable processing temperature (object and ambient temperature) is between +15°C and +25°C.
Pressure
The strength of the bond is directly dependent on the contact that the adhesive has with the surfaces to be bonded. A short, high pressure (e.g. with a squeegee, pressure roller or pressure device, etc.) ensures good surface contact. The type and amount of pressure depends on the material (thin- or thick-walled, etc.) and the geometry of the components. Rule of thumb: approx. 20 N/cm².
Note
The technical information is given to the best of our knowledge, but is not binding. The information only has the character of a general recommendation. Suitability of the product for the desired purpose must be ensured by own tests under the original conditions. A legal assurance of certain properties cannot be derived from our information.
