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1K acid etch primer

SKU: KU-2503

Кислотный 1К грунт протравливающий KUDO KU-2503

Acid Etch Primer KUDO® is professional high-quality and fast-drying product. It is intended for preparing the vehicle's details for repair painting. Prevents the formation of underfilm corrosion.

Improves the adhesion to all types of metal surfaces, including aluminium, galvanized and stainless steel. Applied on degreased and smoothed surfaces, it requires a second primer coat. Can be used to protect metal in sanding areas.

Technical Information





Intercoat drying

5-10 min

Вторичный грунт

Последующий материал наносить строго в интервале 20–30 минут после грунтования

For use on



≈ 1,5 м²


520 ml

Units per box

6 units

Box dimensions

205х137х205 mm


Спирты >30%, диметиловый эфир >30%, синтетические модифицированные смолы 5–15%, антикоррозионные добавки <5%, ароматические углеводороды <5%, неорганические кислоты <5%, пигменты <5%, наполнители <5%, специальные добавки <5%

Shelf life

2 years



  • In order to avoid traces of aerosol, it is recommended to protect surfaces that are not to be treated.
  • For best results, apply the product at a minimum ambient temperature of +10°C and at a relative humidity not exceeding 75%. Recommended temperature for spraying is +20°C.
  • Before the acid primer is applied, the surface should be cleaned of loose rust, dirt, grease, be abrasive treated with P320-400 and degreased. For degreasing, Silicone Remover KU-9100 is recommended.
  • Shake well for 2-3 minutes before use.
  • Spray the primer from a distance of 15-20 cm, in 1-2 coats, with intercoat drying 5-10 minutes. Coating thickness: 4-5 µm per coat. NOTE: Overcoating does not improve the adhesion characteristics of the primer.
  • After priming, apply the further coat within an interval of 20-30 minutes (at +20 °C). It is recommended to use “1K Acrylic Filler Primer” KU-220X as a secondary primer-insulator. Test the product before the main painting process. Avoid applying polyester products, including putty pastes!

Warning! After use, to avoid clogging the spray head, turn the can upside down and spray until the primer stops coming out.

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