Benefits
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Clean paint edges: Helps achieve sharp, well-defined paint lines.
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Reliable masking: Good initial tack helps secure masking materials during painting.
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High visibility: The green backing makes masked areas easier to identify.
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Flexible application: Conforms well to curved surfaces and complex contours.
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High-temperature performance: Supports suitable industrial paint-drying processes up to 120°C.
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Efficient handling: Easy unwinding and hand tearability support convenient application.
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Clean removal: Helps reduce cleanup work when the tape is used within its recommended conditions.
Technical Specifications
| Property | Specification |
|---|---|
| Product Model | Tesa 4338 |
| Tape Type | High-performance paper masking tape |
| Color | Green |
| Backing Material | Slightly-creped paper |
| Adhesive Type | Natural rubber |
| Total Thickness | 145 μm |
| Tensile Strength | 43 N/cm |
| Elongation at Break | 13% |
| Adhesion to Steel | 3.5 N/cm |
| Temperature Resistance | Up to 120°C |
| Hand Tearability | Very good |
| Removability | Designed for clean removal under suitable conditions |
| UV Resistance | Up to 7 days outdoors, depending on conditions |
Note: Technical values are typical values published by tesa and should not be treated as guaranteed specifications. Confirm the latest technical data sheet for the specific product version and market before purchase.
Applications
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Industrial spray-paint masking
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Automotive and commercial vehicle refinishing
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Truck and bus painting
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Railway vehicle painting
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Marine coating and painting
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Masking during oven-drying paint processes
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Protection of selected surfaces during industrial finishing
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Multi-cycle painting processes within the recommended temperature and duration limits
Compatible Materials
Depending on the surface condition and application process, tesa 4338 may be suitable for masking on:
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Painted metal surfaces
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Steel and other metal components
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Automotive and transportation components
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Selected rigid painted substrates
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Curved or contoured surfaces requiring conformable masking
Always test adhesion and removal on the actual substrate before production use, particularly on delicate coatings, plastics, or freshly painted surfaces.
Industries
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Automotive manufacturing and refinishing
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Commercial vehicle manufacturing
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Railway and public transportation
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Marine and shipbuilding
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Industrial coating and painting
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Metal fabrication
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Transportation equipment manufacturing
Why Choose tesa 4338?
tesa 4338 combines a visible green paper backing, natural rubber adhesive, conformability, and temperature resistance up to 120°C for demanding industrial masking applications. It is designed to help users achieve clean paint edges and reliable masking during suitable oven-drying processes.
Yousan New Materials supports industrial adhesive tape sourcing, roll slitting, and customized converting solutions. Depending on project requirements and material availability, we can help assess suitable tape widths, roll formats, and converting options.
Installation Guide
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Prepare the surface: Ensure the surface is clean, dry, and free from dust, oil, and other contaminants.
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Select the tape width: Choose a suitable width for the masking area and required paint boundary.
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Apply evenly: Press the tape firmly along the masking line, following contours without stretching the backing excessively.
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Seal the edges: Apply adequate pressure along the edges to help prevent paint bleed.
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Follow the paint process: Keep the temperature, drying time, and number of cycles within the recommended limits.
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Remove carefully: Remove the tape under suitable conditions and follow the coating process instructions to minimize the risk of residue or surface damage.
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Test first: Validate adhesion and removal on the actual surface before large-scale use.
Storage
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Store in the original packaging in a clean, dry environment.
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Protect the tape from direct sunlight, excessive heat, and moisture.
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Avoid prolonged exposure to environmental conditions outside the recommended storage range.
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Keep rolls clean and protected from dust or contamination.
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Refer to the manufacturer’s latest technical data sheet for specific storage conditions and shelf life.
FAQ
1. What is tesa 4338 used for?
It is a high-performance green paper masking tape primarily designed for demanding industrial painting and spray-paint masking applications.
2. What is the maximum temperature resistance of tesa 4338?
The published temperature resistance is up to 120°C. The official product information also describes suitability for up to six drying cycles at 120°C for 40 minutes each, subject to the recommended conditions.
3. What material is used for the backing?
It uses slightly-creped paper backing.
4. What type of adhesive does tesa 4338 use?
It uses natural rubber adhesive.
5. Can tesa 4338 be used outdoors?
It offers short-term outdoor usability and UV resistance for up to seven days under specified conditions. Actual performance depends on climate, sunlight exposure, surface condition, and application.
6. Does tesa 4338 remove cleanly?
It is designed for clean removal when used under suitable conditions. Testing is recommended before use on sensitive or freshly coated surfaces.
7. Is tesa 4338 suitable for curved surfaces?
Its conformable paper backing is designed to follow curves and contours, helping users create clean masking lines.
8. Can tesa 4338 be supplied in different widths?
Availability depends on the supplier and original roll format. Slitting or converting options may be assessed according to the required width, roll length, and order quantity.
9. Can Yousan provide customized tesa 4338 rolls?
Yousan can review requests for roll slitting and converting, subject to material availability, dimensions, and project requirements.
Downloads
Available upon request:
- Tesa 4338 Green Paper Masking Tape Technical Data Sheet (TDS)
- Safety Data Sheet (SDS)
- Product Brochure
- Custom Converting Solution Guide
Please contact our sales team if you require the latest technical documentation.
