Low-shrinkage RTV2 liquid silicone: a key guarantee for dimensional accuracy of wall tiles

RTV2 liquid silicone, with its ultra-low shrinkage rate, ensures dimensional accuracy in wall tile and cultured stone molds, which is especially important for modular wall tile systems and automated production lines.

Dimensional accuracy is paramount in wall tile and cultured stone manufacturing, particularly in modular wall tile systems where components need to be tightly joined. RTV2 liquid silicone, with its ultra-low shrinkage rate, ensures that every mold—and every piece poured from it—maintains precise dimensions.

Why shrinkage matters:

Silicone undergoes slight volume shrinkage during curing. Even a 0.5% shrinkage rate results in a 0.3mm dimensional deviation on a 60cm mold. While this may be acceptable for ordinary wall tiles, it can cause serious problems in the following scenarios:

• Interlocking modular wall tile systems
• Large panels requiring tight joints
• Production lines using automated cutting and sizing
• Export products with precise dimensional requirements

Our low-shrinkage formulation:

Our high-end RTV2 liquid silicone has a shrinkage rate of less than 0.1%, leading the industry. This means that the dimensional deviation of the 60cm mold is less than 0.06mm—far below the tolerance requirements for precision wall tile manufacturing.

Value to the factory:

• Consistent output: Every product conforms to design dimensions.
• Low scrap rate: Significantly reduced rejections due to dimensional inconsistencies.
• Interchangeable molds: Molds made at different times produce compatible products.
• Customer satisfaction: Architects and installers can rely on consistent dimensional specifications.

We verify shrinkage rates for every batch of products using standard testing methods, providing the quality assurance required for precision manufacturing plants.

Keywords: Low shrinkage silicone, RTV2 dimensional accuracy, wall tile mold accuracy, liquid silicone shrinkage rate