1、 Overview

The main components of AF # defoamer are high-grade alcohol and high-grade defoamer. Only 1 to 5 grams / liter can prevent and eliminate the foam produced in the process of PCB production, such as pumice whiteboard, dry film and photosensitive ink development and deinking. Moreover, it is completely dissolved in weak alkaline solution without precipitation, which is harmless, safe and reliable to human body. Moreover, it has low viscosity, easy dispersion and fast and strong defoaming effect.

2、 Technical indicators

Appearance: colorless to yellowish liquid

Ionic properties: non-ionic

Density: 0.98-1.02

PH value: 6-8

Stability: 100%

Defoaming performance: 500ml (liquid + foam), s ≤ 60

Foam inhibition performance: 600ml (liquid + foam), s ≤ 400

Shelf life: six months

3、 Method of use

Directly adding AF-333# into the solution before the foam is formed can control foam effectively and prevent foam formation. If the foam has been formed, dilute it with 5 times of water before adding the solution, it can instantly remove the formed foam.

The amount of af-333# added is 1-5g / L, which is related to the temperature, composition and spraying pressure (stirring speed) of the solution medium, and is also increased or decreased according to the effectiveness of defoaming.

4、 Packaging and storage

Packing: 20kg

Storage: store at room temperature and do not contact with acidic substances.

Period of validity: six months.