Bio Nil
P2
Bionil P2 Pickling Paste
Weld Stain Cleaning Paste
Brush-applied pickling paste that removes weld discolouration, heat-treatment scale, corrosion and rust stains from stainless steel weld zones.
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Bio Nil
Bionil P1 Immersion
Weld and Surface Cleaning Liquid
Bio Nil· P1
Bionil P1 Immersion
Weld and Surface Cleaning Liquid
Bionil P1 removes all types of oxidation, pitting, heavy rust and weld stains from stainless materials and prepares the surface for passivation. Reinforced with special chemicals, base-metal loss is kept to an absolute minimum. It does not damage or yellow the surface. It gives the surface a homogeneous and permanent silver colour.
Key Features
- Does not damage or yellow the surface
- Minimal base-metal loss
- Homogeneous and permanent silver colour
- Easy bath preparation
- Prepares the surface for passivation
Application Result
Before and after
Drag horizontally to compare the surface before and after chemical treatment.
Before Application
After ApplicationTechnical Properties
Specifications
| Property | Value |
|---|---|
| Form | Free-flowing liquid (immersion) |
| Reaction time (AISI 304, 304L) | 30-60 minutes |
| Reaction time (AISI 316, 321) | 60-90 minutes |
| Consumption | 10-15 m²/kg |
| Application | Immersion in an acid-resistant plastic tank, optional 1:1 dilution |
| Suitability | AISI 304, 304L, 316, 321 and their derivatives |
Material Compatibility
AISI 304AISI 304LAISI 316AISI 321Derivatives
Usage Areas
Where is it used?
- Pipes and parts with complex geometries
- Batch cleaning of small parts
- Industrial tanks and fittings
- Heavy oxidation removal
Application Procedure
Step-by-step usage
- 01
Remove heavy oil and dirt from the material with Bionil PF
- 02
Pour Bionil P1 into an acid-resistant plastic tank (dilute 1:1 if required)
- 03
Immerse the parts in the bath and leave for 30-90 minutes depending on the material grade
- 04
Set up the bath in a well-ventilated area
- 05
Rinse the removed parts with pressurized clean water
Application step01 / 05
01
Remove heavy oil and dirt from the material with Bionil PF
- 01
Remove heavy oil and dirt from the material with Bionil PF
- 02
Pour Bionil P1 into an acid-resistant plastic tank (dilute 1:1 if required)
- 03
Immerse the parts in the bath and leave for 30-90 minutes depending on the material grade
- 04
Set up the bath in a well-ventilated area
- 05
Rinse the removed parts with pressurized clean water
Hazard ClassificationGHS / CLP — typical reference
Hazard Statements (H)
- H290May be corrosive to metals.
- H314Causes severe skin burns and eye damage.
- H335May cause respiratory irritation.
Precautionary Statements (P)
- P280Wear protective gloves/protective clothing/eye protection/face protection.
- P260Do not breathe mist/vapours/spray.
- P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
- P303+P361+P353IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water or shower.
- P310Immediately call a POISON CENTER or doctor.
The classification above shows typical reference values for acid-based pickling/passivation products. Always refer to the product's current Safety Data Sheet (SDS/MSDS) for binding information; contact us for product-specific classification.
Safety Warnings
- Wear personal protective equipment such as goggles, gloves, apron and mask during application
- The area must be well ventilated
- In case of skin contact, wash with plenty of water
Frequently Asked Questions
About Bionil P1 Immersion
Which stainless steel grades is Bionil P1 suitable for?
It is suitable for AISI 304, 304L, 316, 321 and their derivatives.
How is the reaction time determined?
30-60 minutes for AISI 304/304L and 60-90 minutes for AISI 316/321; it varies depending on the degree of contamination and the temperature.
Can the bath be diluted?
Yes, depending on the degree of contamination you can dilute it 1:1 with clean water.
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