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Home Tests test - Chemical resistance (immersion procedure)

Manufacturer/company:

Knauf Ceiling Solutions GmbH & Co. KG

Elsenthal 15
Grafenau
Germany

Number of projects

6

Number of test pieces

49

Phone

-

Email

-

Website

-

Documents

Urkunde chemische Beständigkeit

Valid until 15.09.2028

Download

certificate chemical resistance

Valid until 15.09.2028

Download

Bescheinigung chemische Beständigkeit

Valid until 15.09.2028

Download

statement chemical resistance

Valid until 15.09.2028

Download

Test piece

Name of test piece/s	Acoustic Range Coating
Description	dimensions: 3 x 3 cm
Project number	KN 2308-1449
Created on	08/24/2024
Valid until	09/15/2028
Test type	Chemical resistance (immersion procedure)
Classfication	good , weak , excellent

Tests & results

Chemical resistance (immersion procedure)

Chemical resistance (VDI 2083 Part 17; ISO 2812-1; ISO 4628-1)
Chemical resistance	1h	3 h	6 h	24 h
Formalin 37 %	excellent	excellent	excellent	excellent
Ammoniac 25 %	excellent	excellent	excellent	excellent
Hydrogen peroxide 30 %	excellent	excellent	excellent	excellent
Sulfuric acid 5 %	excellent	excellent	excellent	excellent
Phosphoric acid 30 %	excellent	good	good	good
Peracetic acid 15 %	excellent	excellent	excellent	excellent
Hydrochloric acid 5 %	excellent	good	good	good
Isopropanol 100 %	excellent	excellent	excellent	excellent
Sodium hydroxide 5 %	excellent	good	weak	weak
Sodium hypochlorite 5 %	excellent	very good	weak	weak