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AG TermoPasty Universal Developer for Photoresists and Positive PCBs 110 g – NaOH-free
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Description
AG TermoPasty AGT-326: developer for photoresists and positive PCBs 110 g – NaOH-free
Powder developer for precise processing of positive photoresists and printed circuit boards (PCBs). The NaOH-free formula makes process control easier and helps achieve sharp, clean edges without undercutting. For professional use.
Applications
Developing light-sensitive layers on PCBs and in photolithography and electronics prototyping processes.
Solution preparation and use
Pour 110 g of powder into approx. 2 L of water (permissible 1.5–2.5 L). Mix at approx. 50 °C until fully dissolved, then cool to room temperature. Develop for 30–60 s (max. 2 min), then rinse thoroughly with water.
Technical parameters
| Parameter | Value |
|---|---|
| Net content | 110 g |
| Type / intended use | Developer for photoresists and positive PCBs |
| Chemical composition | Disodium metasilicate (CAS 10213-79-3) |
| Working solution ratio | 110 g / 2 L (±0.5 L) of water |
| Solution preparation temperature | approx. 50 °C (use after cooling) |
| Development time | 30–60 s (max. 2 min) |
| pH (1% solution) | > 12 |
| Physical state / colour / odour | Solid powder; white; odourless |
| Water solubility | Soluble |
| Density | approx. 1.749 g/cm³ |
| CLP – signal word / H | Danger; H290, H314, H318, H335 |
| Transport (ADR/IMDG/IATA) | UN 3253, class 8, packing group III |
| SKU / EAN | AGT-326 / 5901764322368 |
Storage
Store in the original, tightly closed packaging in a dry, cool, well-ventilated place, away from sources of heat and sunlight. Protect from moisture. Do not store together with acids, oxidisers or metals.
FAQ
Positive UV PCB developer – is this product suitable?
Yes. This developer is intended for positive photoresists on PCBs after UV exposure (positive process).
PCB developer 110 g – how many litres should I dilute it to?
Typically 110 g to approx. 2 L of water (acceptable range 1.5–2.5 L). Dissolve at ~50 °C and use after cooling.
Positive developer – what is the development time?
Usually 30–60 s; do not exceed 2 minutes to avoid edge loss.
NaOH-free developer – how is it different from NaOH-based?
It is gentler to materials and operators while maintaining effective development; it is still corrosive – use appropriate PPE as per the SDS.
Developer solution – at what temperature should I prepare it?
About 50 °C to dissolve the powder; use after cooling to room temperature.
Pale/underdeveloped image – how can I improve the result?
Check UV exposure, slightly extend development time or slightly increase concentration after tests on scrap material. Avoid times > 2 min.
Can the prepared developer solution be stored?
The manufacturer does not declare a shelf life for the working solution; prepare fresh portions, store briefly in a closed container and dispose of according to regulations.
Disposal of developer solution – how to do it safely?
Follow local regulations and the SDS guidance; do not pour into the sewage system.
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