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Drizoro Maxrest Passive

Maxrest passive Protect-remedy-corrosion of reo
Drizoro Maxrest Passive


Technical Brochure | MSDS | Specifications


MAXREST®PASSIVE is a one-component liquid product, ready to use as an oxide converter and protection of re-enforcing bars and other steel and iron surfaces against corrosion.

MAXREST®PASSIVE once applied Neutralizes the corrosion process, reacting quickly with the rust and transforms iron oxide into a stable passive layer giving full protection against corrosion, salts, acid and alkali attack.


 • Oxide converter and protection of re-enforcing bars in structural concrete repair exposed to aggressive conditions such as in coastal areas, industrial environments, etc.

• Anti-corrosion protection against the attack from strong chemical agents such as diluted alkali and acid solutions.

• Adhesion promoter on metal surfaces for subsequent coating systems.


 • Excellent adhesion on metal substrate.

• It reacts even with steel which has been sandblasted to white metal or over only partially rusted surfaces.

• Water-based liquid, solvent-free and non-flammable.

• One-component product, easy and ready to use.

• Quick drying, allows a fast repair job.


Surface preparation

Clean down affected area by wire brush, sandblasting or water blasting and wash with clean water. Remove any dust, oil and grease.


MAXREST® PASSIVE is ready to be used; it does not require dilution or addition of other materials. Apply by brush, spray gun or by immersing the element to be protected. Apply two coats, the second one when the first coat is dry to touch (between 2 – 3 hours at 20ºC). Avoid staining the concrete around the reinforcement. More successive coats can be applied if required.

Application conditions

Do not apply below 5 ºC of if such temperature is expected within 24 hours. Do not apply if rainfall is expected within 24 hours. Do not apply on frosted or frozen surfaces.


MAXREST® PASSIVE can be coated with other epoxy or polyurethane coatings 24 hours after application.


Clean with water all tools and equipments immediately after use. Once it hardens, product can only be removed by mechanical methods.


Estimated consumption of MAXREST® PASSIVE is 0,15 kg/ m2 per coat, for a dry film thickness of 50 microns, in order to achieve a total consumption of 0,3 kg/m2 in two coats. Consumption may vary depending on texture and surface conditions, a preliminary test on-site will determine consumption exactly.

PACKAGINGMaxrest passive Protect-remedy-corrosion of reo

MAXREST® PASSIVE is supplied in 500 gram, 1 kg, 25 kg and other amounts on application.


Twelve months in its original unopened packaging, in a dry covered place, protected from humidity and frost with temperatures above 5 ºC.


MAXREST® PASSIVE is not a toxic product but skin and eye contact must be avoided.

Safety goggles and protective gloves should be used during application. In case of skin contact, wash affected areas with soap and water. In case of eye contact rinse thoroughly with clean water but do not rub. Seek medical attention if irritation persists.

Safety Data Sheet for MAXREST® PASSIVE is available by request.

Disposal of the product and its empty packaging must be made by the final user and according to official regulations.









The information contained in this leaflet is based on our experience and technical knowledge, obtained through laboratory testing and from bibliographic material. DRIZORO®, S.A. reserves the right to introduce changes without prior notice. Any use of this data beyond the purposes expressly specified in the leaflet will not be the Company’s responsibility unless authorised by us. We shall not accept responsibility exceeding the value of the purchased product. The data shown on consumptions, measurement and yields are for guidance only and based on our experience. These data are subject to variation due to the specific atmospheric and jobsite conditions so reasonable variations from the data may be experienced. In order to know the real data, a test on the jobsite must be done, and it will be carried out under the client responsibility. We shall not accept responsibility exceeding the value of the purchased product. For any other doubt, consult our Technical Department.