Developer · Positive Plate Developer
KY161 Positive Plate Developer
Alkalescent positive PS plate developer, powder 500 g/bag or 5 L liquid, suited to SGZ etching zinc plate.
Overview
What This Product Is
KY161 is an alkalescent developer for positive PS plate, and SGZ specifies it as especially suited to its own etching zinc plate. It is sold as a powder to mix on site, at 500 g to 1 litre of working liquid, or as ready-mixed 5 litre drums.
Alkalescent formula
Mild enough to hold the resist while clearing the image.
Two supply forms
Powder at 500 g per bag, or ready-mixed 5 litre liquid.
Simple mixing
One 500 g bag makes 1 litre of developer liquid.
Matched to SGZ zinc plate
SGZ specifies it as especially good for its etching zinc plate.
Who it is for
Buyers Who Specify It
Etching houses running coated zinc plate
Shops that expose and develop SGZ coated plate.
Positive PS plate users
Commercial printers developing positive plates.
Consumable distributors
Traders stocking developer for plate markets.
Export buyers
Customers who prefer powder because it ships lighter than liquid.
Problems it solves
What Goes Wrong Without It
- An aggressive developer strips resist from the shoulders and a weak one leaves scum in the image. KY161 is an alkalescent grade matched to the SGZ blue photoresist.
- Shipping liquid developer across an ocean is expensive. The powder form mixes 500 g into 1 litre on arrival.
- Shops that develop by hand need a small, consistent pack. 500 g bags, 30 to a carton, suit that.
Technical data
Specifications
Every figure below is taken from the SGZ specification for the KY161 Positive Plate Developer. Where SGZ does not publish a value, none is invented.
| Product type | Positive plate developer |
|---|---|
| Model | KY161 |
| Chemistry | Alkalescent |
| Suitable for | Various positive PS plates, especially SGZ etching zinc plate |
| Powder packing | 500 g per bag, 30 bags per carton |
| Liquid packing | 5 L per plastic drum, 3 drums per carton |
| Mixing ratio | 500 g powder makes 1 L of developer liquid |
Technical Features
- Alkalescent positive plate developer
- Suitable for various positive PS plates
- Especially suited to SGZ etching zinc plate
- Powder: 500 g per bag, 30 bags per carton
- Liquid: 5 L per plastic drum, 3 drums per carton
- 500 g of powder mixes into 1 litre of developer liquid
Materials
Alkalescent developer chemistry supplied either as a dry powder or as a ready-mixed liquid.
How it is made
Manufacturing Process
Choose the form
Powder for lighter freight, liquid for immediate use.
Mix
Dissolve one 500 g bag into 1 litre of water to make working developer.
Develop
Develop the exposed positive PS plate or SGZ coated zinc plate.
Rinse
Rinse before moving the plate to the etching bath.
Quality Control
- Powder packed in sealed 500 g bags, 30 per carton
- Liquid packed in 5 L plastic drums, 3 per carton
- Formulated to suit the photoresist SGZ coats onto its zinc plate
Customisation Options
- Powder or liquid supply
- Carton quantities to suit a container load
- Supplied together with SGZ coated zinc plate
Certification
SGZ does not publish third-party certification for this item, so none is claimed here. Ask [email protected] if your market requires specific documentation.
Comparison
How It Compares With the Alternatives
Coated Zinc Plate for Engraving and Etching
The developer is the step between exposing the coated plate and etching it. Buy both together and the chemistry is already matched.
Velv-Etch Zinc Etching Additive Oil
The developer clears the exposed resist; the additive etches the metal underneath. Both are needed.
Use Guide
- Mix 500 g of powder into 1 litre of water to make working developer.
- Develop the exposed plate, then rinse thoroughly.
- Do not carry developer into the etching bath; it changes the bath chemistry.
- Store powder bags sealed and dry.
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KY161 Positive Plate Developer Questions
What is KY161 used for?
Developing positive PS plates. SGZ specifies it as especially good for its etching zinc plate.
How do I mix the powder?
500 g of powder makes 1 litre of developer liquid.
What pack sizes are there?
Powder in 500 g bags, 30 bags per carton. Liquid in 5 L plastic drums, 3 drums per carton.
Is it aggressive on photoresist?
It is an alkalescent developer, chosen so it clears the image without lifting the resist.
Can I use it with magnesium plate?
It is specified for positive PS plates and SGZ etching zinc plate. Ask SGZ before using it on another resist system.
Guides to Read Next
Product Guide
What Is a Photoengraving Zinc Plate
A photoengraving zinc plate is rolled zinc carrying a light-sensitive coating, exposed and developed so acid cuts relief into the...
Read more →Process Guide
Powderless Etching Explained
How a powderless etching machine works: bath capacity from 20 to 200 litres, rotation to 450 r/min, temperature 15-30 C, time to...
Read more →Request a Price on KY161 Positive Plate Developer
Give SGZ the size, thickness and quantity and you will get a direct factory quotation. Drawings for OEM etching can be emailed as an attachment.