BLACK JACK - Frequently Asked Questions


Q. What is Black Jack?                                           

A. Black Jack is a safe, water based treatment  which neutralises rust and protects rusted iron and steel.


Q. How do you use it?


A. First , you remove loose flaky rust to expose some underlying bare metal. Second, you apply  Black Jack, by spray, stiff brush or roller in thin even coats. A second coat of Black Jack can then be applied or you can apply any other paint topcoat.


Q. How many coats do you need?


A. Black Jack is a one coat rust treatment.  However, the best results are achieved with two coats. In applications not exposed to weathering, two coats give outstanding protection, up to five years, without using topcoating systems.


Q. What is the difference in performance between one coat and two coats of Black Jack with an appropriate topcoating?


A. Depending upon how severe the conditions are, one coat lasts from 6 months to 2 years. Two coats will last for up to 5 years again depending on the severity of the weather and the impermeable, compatible and flexible nature of the topcoat, epoxy, polyurethane, bituminous coatings etc.


Q. Can you apply Black Jack to blast cleaned steel?


A. Yes, but there is no need to blast clean if using Black Jack unless to sweep blast.


Q. On what surfaces is it used?


A. Black Jack is used on iron and steel structures.


Q. What happens if Black Jack is used on aluminium?


A. Black Jack will form a flexible protective coating.

Q. Will Black Jack stop rust?


A. Yes, Black Jack prolongs the life of paint systems.         


Q. Will the product freeze?   


A.  Yes


Q. How quickly does Black Jack dry?


A. Touch dry in 30 minutes.


Q. When can I paint over Black Jack?


A. In order for the chemical reaction to take place, 8 hours is recommended for water based topcoats and 24 hours for solvent based topcoats.


Q. Can I use Black Jack if it is damp or humid outside?


A. Yes. Unlike most paint products, Black Jack  can be used in damp humid environments so long as drying conditions exist.


Q. What happens if it rains on treated surfaces before Black Jack dries?


A. If Black Jack gets wet within 4 hours of application, simply  re-apply the coating.


Q. Can I use Black Jack in Ultra High Pressure Blasting specifications?


A.  Yes, it is ideal after UHP water jetting.


Q.  What is Black Jack made of?


A. Black Jack is a water based polymer. The ingredients are unique and can be compared to the quality of polymer that car makers use to provide extended rust proofing and undercoating warranties on vehicles.


Q. How does the product work?


A.  Black Jack contains ingredients which chemically convert rust to a stable iron oxide. The polymer in Black Jack provides a protective coating over the stabilised surface.


Q. Does it have any other uses other than rust conversion?


A. Yes. It provides a very tough protective coating.

Q. Does it come in colours?


A. No. The finished product dries blue/black. Overcoat with the desired colour of paint.


Q. Does Black Jack change colour after application?


A. Yes. Black Jack is applied as a creamy colour which dries blue/black. The colour change is due to the chemical reaction of rust passivation.


Q. Is the product harmful or is it hazardous? 


A. Not at all.


Q. Does the product smell?


A. Black Jack has a faint characteristic smell.


Q. Is the product environmentally safe?


A. The product is engineered to be as environmentally “friendly” as possible, it contains no hydrocarbon solvents or toxic pigments.


Q. Is Black Jack flammable.


A. No. It has been tested as Class “O”.


Q. What happens if I get it on my hands?


A. Wash off with soap and water. It is always good practice to wear gloves when painting with any product.


Q. What happens if it dries on my skin?


A. It may stain but staining can be removed with a dilute bleach solution.


Q. What do I do if it gets on my clothes?


A. Wash affected area with soap and water before Black Jack dries.


Q. What first aid is required?


A. Splashes on skin or eyes should be flushed well with water.

Q. What about cleaning up after use?


A. Use soap and water to clean equipment before Black Jack dries and aromatic solvents if it has dried.



Q. What will happen if I apply Black Jack on a heat source?


A. Heat will soften the coating. It will harden again when cool. Extreme heat will cause the product to char.




Sold by:


Div of CanSa Pty Ltd

P O Box 2257 CLAREINCH 7740

South Africa

Tel: 021-6921295  Fax: 021-6913898