MATERIALS, ADHESIVES AND COATINGS
PL81 / PL106 / PL200 / PL221 / PL500 / PL37 ANL / Synocryl 9122X protective (stop-off) lacquers and process compounds for plating, nitriding and welding
Country: United Kingdom · Model: PL81 / PL106 / PL200 / PL221 / PL500 / PL37 ANL / Synocryl 9122X
The stop-off lacquers PL81-R3, PL81-2438-099, PL106, PL37, PL200, PL221, PL500-R1 and the acrylic resin Synocryl 9122X mask areas of a part from plating, anodizing, nitriding and welding treatment. After the operation the coating is removed and does not remain on the finished product. The compounds are intended for production and repair of aero engines.
- PL81-R3 / PL81-2438-099
- fast-drying blue / green stop-off lacquers: insulation during plating, temporary protection, insulating lacquer
- PL106
- red acid-resistant stop-off lacquer, removed with strong solvents; PL2938-REMOVER, stop-off lacquer remover
- PL37 (ANL)
- two-component tin-filled anti-nitriding lacquer (developed by Rolls-Royce, formerly Acheson Colloids)
- PL200
- green anti-spatter lacquer for electron beam welding
Technical specifications
| PL81-R3 / PL81-2438-099 | fast-drying blue / green stop-off lacquers: insulation during plating, temporary protection, insulating lacquer |
|---|---|
| PL106 | red acid-resistant stop-off lacquer, removed with strong solvents; PL2938-REMOVER, stop-off lacquer remover |
| PL37 (ANL) | two-component tin-filled anti-nitriding lacquer (developed by Rolls-Royce, formerly Acheson Colloids) |
| PL200 | green anti-spatter lacquer for electron beam welding |
| PL221 | water-washable laser stop-off for titanium before welding (green matt, waxy) |
| PL500-R1 | laser stop-off on silicate solution with organic resin |
| Synocryl 9122X | clear air-drying acrylic resin as stop-off against anodizing and plating; halogen-free |
| Other | PL258, chemical-resistant marking ink for castings; NML21, test liquid for composites before bonding (Rolls-Royce) |
Specifications are taken from the manufacturer’s technical documentation. Updated .
Description
The blue PL81-R3 and green PL81-2438-099 dry very quickly and serve as insulation during plating, temporary protection or insulating lacquer. The red acid-resistant PL106 is removed with strong solvents, and for the PL2938 lacquer there is the PL2938-REMOVER, which leaves a clean surface without stains. The PL37 (ANL) is a two-component tin-filled air-drying anti-nitriding lacquer developed in Rolls-Royce laboratories and previously produced under license by Acheson Colloids. For welding there is the PL200, which makes spatter removal easier in the electron beam process, and the PL221, a green viscous liquid for titanium parts. It dries to a matt waxy film, tolerates moderate handling and is washed off with water. The PL500-R1 is a laser stop-off on a silicate solution with organic resin and an alkali additive. The Synocryl 9122X is applied by dipping, spraying or brush, and the film contains only a hydrocarbon resin with no halogenated compounds. Supplied separately are the chemical-resistant marking ink PL258 for castings and engine parts and the violet test liquid NML21 for carbon-fiber and fiberglass parts before bonding.
How to choose
The lacquer is chosen by the process from which the surface must be protected. For plating take the PL81-R3 or PL81-2438-099, when acid resistance is needed the PL106, against nitriding the PL37, and for electron beam welding the PL200. Titanium parts are masked before laser welding with the PL221, and the PL500-R1 has a silicate base. If a clear fast-drying barrier against anodizing solutions is needed, the Synocryl 9122X is suitable.
Request a price and lead time
PL81 / PL106 / PL200 / PL221 / PL500 / PL37 ANL / Synocryl 9122X protective (stop-off) lacquers and process compounds for plating, nitriding and welding. We reply within one business day.
Or email office@usk.ua or call +38 (044) 339-50-20.
FAQ
Which lacquer is used for protection against nitriding?
The PL37 (ANL) is a two-component tin-filled air-drying lacquer that masks areas of the part that must not be nitrided.
What should be used to remove the PL106 stop-off lacquer?
The PL106 is removed with strong solvents, and for the PL2938 lacquer the PL2938-REMOVER is made, after which no stains remain on the surface.
Which stop-off lacquer should be used for electron beam welding?
The green PL200 makes spatter removal easier in this welding. For titanium parts before welding there is the water-washable PL221.
What is the Synocryl 9122X resin for?
It is a clear air-drying acrylic resin applied by dipping, spraying or brush as a barrier against anodizing and plating solutions. It contains no halogenated compounds.
What is the NML21 test liquid?
A violet liquid approved by Rolls-Royce for checking carbon-fiber and fiberglass parts before bonding using the water-break method.
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