NASA Regulations for Advertising Requests:
NASA Goddard Space Flight Center Image by Reto Stöckli
Reference: NASA/Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of Washington

 

Introduction

The adhesion of plating will easily peeled off during and after drilling. The adhesion of EFP still good during and after drilling. The corrosion resistant of EFP is better compare with normal plating.

　EFP can speed up the drilling duration, and the surface of EFP coating is more hardness than plating surface. The point of screw will be sharper, harder and smoother which allow the screws easily to cut the wood and metal.
Some Chemistry Wax and Plating component are toxicant, especially during production; however, EFP is none toxic even in the production. EFP is a friendly coating, it will reduce the plating pollution and 100% helps to save the Earth for our future.
 
ADVANTAGES of EFP:
1. Free of Tri- or Hexavalent Chromium.
2. Environmental Friendly Process Reduces Waste Effluent.
3. Quality Look: Brightness Appearance more than Stainless Screw!
4. Extreme Corrosion Resistance more than 2000+ Hours Salt Spray Test.
5. Stronger than Bi-Metal Screw (or Alloy Steel Screw) without Breakage During Usage.

 

Lap Report & Research
Screw Rust & Corrosion Resistance COMPARISON TABLE

PRODUCT/ FINISH

APPLIED VIA

LIFE/
GUARANTEE
(ASTM B117)

ADVANTAGES

DISADVANTAGES

Black Phosphate

Chemically

24~100
(Prevention Oil)

Price

Short Life/
No Acid Resistance

Clear (Silver) Zinc

Electrically

24~100 (Sealer)

Price

Short Life/
No Acid Resistance

Yellow Zinc

Electrically

48~240 (Sealer)

Price

Short Life/
No Acid Resistance

Hot Dipped/
Dacrotized

Zinc Rich
DIP/ SPIN 2~4 Times

250~1000

Price & better performance
than Yellow Zinc

Higher Priced than
Yellow Zinc

Ruspert/ Magni

Electrically Plus
ORGANIC/ INORGANIC
DIP /SPIN 2~4 Times

500~1500

Longer life than Dacrotized/
better acid resistance

Higher Priced than
Dacrotized

EFP

Electrically plus
Sealer

250~2000 (Sealer)

1. Inexpensive, high quality,
extreme corrosion
resistance
2. Free of Tri- or Hexavalent
Chromium

Lower Priced than
Ruspert/ Magni

Stainless Steel

 

 

 

Highest Price than any others