Clara S

Clara S: Clear

Clara S is a clear plastic with excellent resistance against humidity and moisture. Its key property is transparency, which sees it used in a range of applications including car headlights.The main reason why customers chose Clara S is for its transparency, but it has other advantageous properties too. It is easy to recoat and cleaning quick and easy.


Transparent, excellent optical clarity, Resistant to humidity and moisture, Easy to process and finish, Simulates acrylic effect.


Master patterns, Concepts and prototypes, Fluid flow analysis, Optical testing, Car headlights.

Clara S material property table

Liquid properties

Viscosity312~420 cps@ 25°C (77°F)
Density1.13 g/cm³@ 25°C (77°F)

Optical properties

Ec7.7 mJ/cm2[critical exposure]
Dp0.18[slope of cure-depth vs. In(E) curve]
Dp0.18[slope of cure-depth vs. In(E) curve]

Mechanical Properties (90 Minutes UV Postcure)

ASTM MethodProperty DescriptionValue
ASTM D 638Tensile Modulus2590-2760 MPa
ASTM D 638Tensile Strength at Break44-62 MPa
ASTM D 638Elongation at Break7-11%
ASTM D 638 @66PSIASTMHeat Deflection Temperature40~51°C
ASTM D 790Flexural Strength75-84 Mpa
ASTM D 790Flexural Modulus2670-2870 Mpa
ASTM D 256Izod Impact (Notched)27-38 J/m
ASTM D 2240Hardness Shore D83

* These values may vary and depend on individual machine processing and post-curing practices.