tesa® 4378 Easy Cover Auto

3 in 1 - Car body masking solution for large areas


Product description

tesa® 4378 Easy Cover® Auto is a 3-in-1 system for masking large areas for car body repair. The convenient system is comprised of the slightly crepe paper masking tape tesa® 4309 with natural rubber adhesive, a masking paper border and HDPE masking film, working together to ensure optimal protection. tesa® 4309 is a conformable and flexible paper masking tape. It is suitable for spray-painting applications, with subsequent oven-drying up to a temperature of 120 °C. The additional masking paper border provides paint absorption at the most critical area close to the repair spot. The HDPE film serves for the protection against spray particles. It is specifically treated for better paint adherence and clings to the car body. tesa® 4378 Easy Cover® Auto allows a single person to cover large areas easily and quickly as well as reducing the logistic complexity.


Product details and specifications

Application Fields

  • Professional masking during spray painting work for industrial applications and car body repair
  • Ideal for masking large areas easily and quickly
  • Protection against spray particles
  • Reduction of logistic complexity
Adhesive Type natural rubber
Backing material slightly-creped paper
Total thickness 170 µm
Elongation at break 12 %
Tensile strength 47 N/cm
Easy to remove yes
Thickness of masking coverage 0.39 mils
10 µm
Weight of addtl. protection paper 52.63 lbs/in²
37 g/m²
Material of masking coverage HDPE
Adhesion to Steel 2 lbs/in
3.5 N/cm
tesa® products prove their impressive quality day in, day out in demanding conditions and are regularly subjected to strict controls. All technical information and data above mentioned are provided to the best of our knowledge on the basis of our practical experience. They shall be considered as average values and are not appropriate for a specification. Therefore tesa SE can make no warranties, expressed or implied, including, but not limited to any implied warranty of merchantability or fitness for a particular purpose. The user is responsible for determining whether the tesa® product is fit for a particular purpose and suitable for the user’s method of application. If you are in any doubt, our technical staff will be glad to support you.
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Product comparison

Name of product tesa® 4378 Easy Cover Auto tesa® 4325 Industry tesa® 4302 tesa® 5010 Advanced Masking Tape tesa® 5012 Expert Masking Tape tesa® 5008 tesa® 4324 tesa® 4334 Precision Mask® tesa® 4322 tesa® 4316 PV3 tesa® 51300 tesa® 4309 PV1
Total thickness
170 µm
120 µm
170 µm
165
160
135 µm
280 µm
90 µm
380 µm
140 µm
160 µm
170 µm
Adhesive Type
natural rubber
natural rubber
natural rubber
natural rubber
natural rubber
natural rubber
natural rubber
acrylic
natural rubber
natural rubber
natural rubber
natural rubber
Backing material
slightly-creped paper
slightly-creped paper
slightly-creped paper
slightly-creped paper
slightly-creped paper
slightly-creped paper
slightly-creped paper
Washi paper
highly-creped paper
slightly-creped paper
slightly-creped paper
slightly-creped paper
Last updated on Jun 18, 2026