RP7570 has excellent anti-rust performance "can replace traditional anti-rust oil products"

Release time:

2023-09-13

1. Product Introduction

It is a highly effective rust inhibitor that can be added to mineral oil or water, with outstanding wet box and salt spray protection performance:
Water-based rust inhibitor developed for harsh environments such as salt spray and damp heat;
Can be widely used in ferrous metals and non-ferrous metals long-term rust;
It is recommended to apply to the main anti-rust agent or additive in anti-rust oil and water-based anti-rust liquid.

Recommended ratio of RP7570

Pure oil type		Emulsifying type
Components	Addition amount (%)	Components	Addition amount (%)
RP7570	5.0-20.0	RP7570	25.0-28.5
Base oil¹	Allowance	Diethylene glycol butyl ether	5.0
		Base oil¹	Allowance
		The above formula is mixed with water into 10%-25% emulsion, which is a water-based rust inhibitor.
Remarks	1. Different viscosity and type of base oil have a great influence on the antirust time of emulsion. It is recommended to use No. 5 or No. 10 paraffin base oil or T22 cycloalkyl base oil as the base oil used in the formula; 2. The hardness of water quality will greatly shorten the salt spray time. It is recommended to use soft water or deionized water for dilution. 3. Since RP7570 needs to add diethylene glycol monobutyl ether before emulsification, there is no need to worry about the emulsification of pure oil-type antirust products.

2. Performance test

1. Test ratio: 25% RP7570 + 70% T22 base oil,

Effect of Diethylene Glycol Monobutyl Ether on Emulsifying Properties

Project	No diethylene glycol butyl ether added	Contains diethylene glycol butyl ether
Conclusion	Unable to emulsify in deionized water	Emulsifiable in water
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Conclusion: The effect of diethylene glycol butyl ether on the emulsification of RP7570 is very important.

2.Salt Spray Test (Test Method: ASTM B117)

Salt spray data in pure oil

Project	No. 1	Number 2	No. 3	No. 4
RP7570	5.0%	10.0%	15.0%	20.0%
T22	Allowance	Allowance	Allowance	Allowance

Conclusion: RP7570 mixed pure oil antirust oil can also have good salt spray performance.

Emulsion salt spray

Test ratio: 25% RP7570 + 5% diethylene glycol butyl ether + 70% T22

Test method: Dilute the above stock solution with pure water and 200ppm hard water according to 10%, 15%, 20% and 25% respectively, and then carry out salt spray test. Here we will discuss the influence of water quality hardness on anti-rust salt spray.

Conclusion: It can be seen that the salt spray performance of RP7570 in hard water is greatly reduced, and the salt spray performance is superior in pure water. It can be seen that the water quality has a great influence on the anti-rust performance.

Damp heat experiment of emulsion damp box

Test ratio: 25% RP7570 + 5% diethylene glycol butyl ether + 70% T22

Test method: Dilute the above stock solution with purified water according to the proportion of 10%, 15%, 20% and 25%, and then carry out damp heat test, and the test cycle is 60 days.

Project	10% emulsion	15% emulsion	20% emulsion	25% emulsion
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Conclusion: RP7570 also has good anti-rust performance in damp heat and humidity experiments.

Anti-rust effect in metal working fluid

Test scheme

Project	Programme 1	Programme 2
T22	78.0%	78.0%
Triethanolamine	3.0%	3.0%
ENABLE 9150	15.0%	12.5%
Oleic acid	4.0%	4.0%
RP7570	-	2.5%

Note: because RP7570 has emulsifying properties, in the formulation can effectively reduce the amount of emulsifier

Rust resistance test

Test method: Dilute schemes 1 and 2 according to the ratio of 1:20 (Shanghai residents' domestic water), take 5g of cast iron powder and wash it with IPA (dry), place 90mm filter paper in a petri dish, introduce washed cast iron powder, pour in diluent, soak for 5 minutes, pour it out, cover the petri dish lid, and leave for 2 hours to observe rust.

Project	Programme 1	Programme 2
Conclusion	Rusty	No rust
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Conclusion: RP7570 also has good anti-rust performance in metal working fluid.

Product summary:

RP7570 has excellent anti-rust performance and can replace traditional anti-rust oil products;
RP7570 can also be used in water-based anti-rust products. Its good emulsifying performance can reduce the amount of emulsifier in the formula.