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SAN and Water Glass (Sodium Silicate): Chemical Resistance

Styrene-acrylonitrile

Rating

Concentration20 °C50 °CRemark
saturatedAA

Material comparison at 20 °C

Water Glass (Sodium Silicate): Material comparison at 20 °CSAN: A (highlighted); Aluminium: A; EPDM: A; FEP: A; Viton (FPM): A; HDPE: A.Aluminium: AEPDM: AFEP: AViton (FPM): AHDPE: ALDPE: ANBR: ANylon (PA): APolycarbonate: APETG: APP: APolystyrene: APTFE: APVC Rigid: APVC Flexible: APVDF: ASAN: ASANSS 304: ASS 316: AECTFE/ETFE: –PMP: –Acetal (POM): –Polysulfone: –Silicone: –
A very good resistanceB good resistanceC limited resistanceD not resistantno data
Each bar is one material. Taller bars indicate better resistance. The highlighted bar is the current material.

Resistance overview

SAN shows very good resistance (A) to Water Glass (Sodium Silicate) at saturated at 20 °C, meaning the material remains essentially unaffected by this chemical under standard laboratory test conditions. The rating remains stable between 20 °C and 50 °C, which means this material can also handle moderately elevated process temperatures without additional risk.

Application context

Water Glass (Sodium Silicate) is commonly encountered in chemical processing and metal finishing. SAN (Styrene-acrylonitrile) is a thermoplastic typically used for tanks, piping, containers and liners. Because Water Glass (Sodium Silicate) is classified as corrosive, the choice of containment material is especially critical to prevent leaks, equipment damage, and safety hazards.

Practical recommendation

SAN can be used with confidence for Water Glass (Sodium Silicate) containment and handling. The A rating indicates that the material shows no significant change in weight, dimensions, or mechanical properties after prolonged contact under test conditions. This holds true at both 20 °C and 50 °C, giving a good safety margin for typical process environments.

Did you know?

The ratings shown here apply to pure Water Glass (Sodium Silicate) in contact with the base thermoplastic. In real-world applications, additives, pigments, and fillers in the material can shift resistance in either direction.

Materials rated A or B at 20 °C

Based on the row for saturated, 20 °C.

Thermoplastics
HDPE A, PP A, PVC Rigid A, LDPE A, Nylon (PA) A, Polycarbonate A, PVC Flexible A, Polystyrene A, PETG A
Fluoropolymers
PTFE A, PVDF A, FEP A
Elastomers
EPDM A, Viton (FPM) A, NBR A
Metals
SS 316 A, SS 304 A, Aluminium A

About SAN

Styrene-acrylonitrile resists oils and dilute acids better than polystyrene, but ketones, esters and aromatic and chlorinated solvents still attack it.

Rating scale

A rating marked * is an estimate in the source, not a test result. An estimate is given as one value without a temperature.

About this data

The ratings come from the chemical resistance list published by Bürkle GmbH, which compiled them from raw-material manufacturers’ data. They describe laboratory tests on the raw material at 20 °C and 50 °C.

A finished part also sees pressure, mechanical stress, welds and mixtures that a laboratory test does not. Treat the rating as a first filter and test under your own conditions before relying on it.