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Description
ACTION CAN AC FF-90 RED DYE PENETRANT 500ML CAN33312FF 90 Flaw Finder Non Destructive Testing Kit (Penetrant) 500ml aerosol FF 90 is a three step non destructive flaw finder kit for visual inspection of open to surface cracks, laps and folds on any non absorbent materials, detecting cracks from 30m. FF 90 can be used to inspect welds, castings and forgings. Use for a final check on the following processes: fabrication and metal work, pressure vessels, rolling mill products, repair facilities, metal
FF-90 - Flaw Finder Non-Destructive Testing
Kit (Penetrant)
500ml aerosol
FF-90 is a three-step non-destructive flaw finder kit for visual inspection of open to surface cracks, laps and folds on any non-absorbent materials, detecting cracks from 30µm.
FF-90 can be used to inspect welds, castings and forgings. Use for a final check on the following processes: fabrication and metal work, pressure vessels, rolling mill products, repair facilities, metal alloy plates, castings, metal parts and components, valves and fittings, boilers, furnaces and engines, machining, composite manufacturing and construction for structural components.
Directions for use
- Remove any dirt contamination prior to application with FF-90 Cleaner, spray generously and wipe clent-free cloth.
- Vigorously shake FF-90 Penetrant prior to use. Apply as a light, even film to the surface, saturating all areas to be inspected. Leave to penetrate for 10-20 minutes.
- Remove excess FF-90 Penetrant with a lint-free cloth treated with FF-90 Cleaner. (Taking caution not to spray FF-90 Cleaner directly onto surface as this may remove the Penetrant from flaws.)
- Vigorously shake FF-90 Developer and apply a light coat from a distance of 20cm. Allow to develop for at least 7 minutes, until imperfections are visible. Over time defects will appear as red spots/lines on the white developer.
- Post inspection, clean off developer & treat with an anti-corrosion treatment if necessary.
Key Features
- FF-90 Cleaner
- Powerful, rapid dry solvent
- Removes grime & contamination
- Use for accurate results
- FF-90 Penetrant
- Highly visible red dye for NDT
- Identifies defects 30 m
- Excellent materials compatibility
- FF-90 Developer
- High contrast, opaque white powder
- Clearly indicates defects in welds
- Easily removed after inspection
Technical parameters:
| Description | Spec |
| APPEARANCE | Red liquid |
| SPECIFIC GRAVITY AT 20°C | 0.816 |
| BOILING RANGE | 180 - 250°C |
| FLASH POINT | <70°C |
| AUTO-IGNITION TEMPERATURE | <200°C |
| SOLUBILITY IN WATER | Water washable |
CAN33312Arts/Crafts > Finishing/Cleaning Products > Paint Additives
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.0 ★★★★★
Based on 19 reviews
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Product Reviews
★★★★★ 5
Comfortable
These are very comfortable to wear
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 3, 2026
★★★★★ 5
Love these socks!
The wife struggles with socks. She only like the Nike ones, then they discontinued them, so had to start the search again! Found these, they are expensive just like the Nike, but the size is true, they look great, they are super soft and stretchy. They are light weight and breathable and seem to wick away moisture. She loves these!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 18, 2025
★★★★★ 5
I stay on your foot they don’t slip in your shoe
Number of Items: 3, Color: White/Neutral (3-pairs), Size: Medium
This is the only socks I wear Under Armour because they stay in place I wear a size 8, but they’re more comfortable with a large instead of a medium, but I wear both because I have them already and you can pull them to stretch them out a little bit
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Reviewed in the United States on May 12, 2026
★★★★★ 5
Great fit, truly doesn’t slide off heel
Number of Items: 3, Color: White/Neutral (3-pairs), Size: Medium, Number of Items: 3, Color: White/Neutral (3-pairs), Size: Medium
I’ve scoured all the lands looking for a no-show sock that was 1) thin, 2) quality, soft, breathable material, 3) didn’t dig into my feet/heels, 4) doesn’t shrink, and most importantly 5) stays on the back of my heel without a bulky non-slip rubber piece and these check all the boxes! Perfect for low profile women’s work shoes like Keds, etc. Not low enough for most flats though. I wear a women’s size 9.
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Reviewed in the United States on April 19, 2025
★★★★★ 5
So good - I’m buying MORE.
Number of Items: 3, Color: White (3-pairs), Size: Medium
I’m gonna give you more detail than you need about why I’m buying these socks again.
I’ve been the mom of girl athletes. I’ve been a model and a fashion director. I’ve worn every brand of shoe on the planet and never found a shoe that did NOT find a vulnerable spot on my foot to rub raw. Even my beloved white Jack Purcell sneakers.
With that said - I don’t like socks. I’ve bought a TON of them in 35+ years.....all major brands.
They shift. They lose their shape. They get holes in them and wear out too fast. Not these.
I retired this year, and knowing I’d be in sneakers a lot, traveling, sightseeing ......
I bought these 6 months ago and have worn them constantly. I’ve traveled with them. I’ve washed them in hot water and bleach.
The socks are like brand new. They are exactly the right cut so as not to be seen in a basic sneaker. The little silicone patch on the heel stays put. Not once have I had to dig down into my shoe and pull the sock back up. The socks have stayed soft and EXACTLY the same as the day they were new.
Like I said - I am back to buy them again. Great quality!
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Reviewed in the United States on January 20, 2021
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