Translucent Platinum Silicone: Find Your Starting Grade
Compare CREKEM’s translucent ACS grades by demolding flexibility, mold support and working time to find a practical starting point for your project.
Four Grades Worth Comparing First
Choose a starting grade by demolding difficulty, mold support and production time. Confirm the final grade with a sample trial and current TDS.
ACS10
For molds with deep undercuts or delicate details that require easy, flexible demolding.
Shore A 10 ± 2
ACS20
For reusable, general-purpose molds that need a balance of flexibility and shape support.
Shore A 20 ± 2
ACS45
For larger, supported molds with limited undercuts that need firmer shape retention.
Shore A 45 ± 2
ACS-F25
For time-sensitive molds when a short working window is acceptable.
Shore A 25 ± 2
Compare the Four Translucent Series
Start with the property your mold needs most. The grade details below provide the current typical values for each series.
Grade Details by Series
Choose a series, then open its grade table for hardness, mixed viscosity and typical processing times at 25 °C. All grades below use A:B 1:1 by weight. On a phone, swipe the table horizontally.
| Series | Available grades | Shore A | Mix ratio by weight | Best starting direction |
|---|---|---|---|---|
| ACS-Soft | ACS00, ACS05, ACS10, ACS15 | 0–15 | 1:1 | Deep undercuts, delicate castings and very flexible mold liners. |
| ACS General | ACS20, ACS25, ACS30, ACS35, ACS40 | 20–40 | 1:1 | General-purpose, repeat-use molds; start near ACS25 when no extreme softness or support is required. |
| ACS-Hard | ACS45, ACS50, ACS55, ACS60 | 45–60 | 1:1 | Larger supported molds and simpler geometry where shape retention matters more than easy peel release. |
| ACS-F Fast Cure | ACS-F20, ACS-F25, ACS-F30 | 20–30 | 1:1 | Short production cycles when roughly 5 minutes of working time is sufficient. |
Very soft to soft grades for flexible molds, deep undercuts and delicate release.
| Grade | Hardness (Shore A) | Mixed viscosity (mPa·s) | Working time at 25 °C | Demold time at 25 °C |
|---|---|---|---|---|
| ACS00 | 0 | 2,000 ± 1,000 | 30–40 min | 3–8 h |
| ACS05 | 5 ± 2 | 2,000 ± 1,000 | 30–40 min | 3–8 h |
| ACS10 | 10 ± 2 | 3,000 ± 1,000 | 30–40 min | 3–8 h |
| ACS15 | 15 ± 2 | 3,000 ± 1,000 | 30–40 min | 3–8 h |
Balanced pourable grades for reusable precision molds; firmer options add support.
| Grade | Hardness (Shore A) | Mixed viscosity (mPa·s) | Working time at 25 °C | Demold time at 25 °C |
|---|---|---|---|---|
| ACS20 | 20 ± 2 | 4,000 ± 1,000 | 30–40 min | 3–8 h |
| ACS25 | 25 ± 2 | 4,000 ± 1,000 | 30–40 min | 3–8 h |
| ACS30 | 30 ± 2 | 6,000 ± 1,000 | 30–40 min | 3–8 h |
| ACS35 | 35 ± 2 | 8,000 ± 1,000 | 30–40 min | 3–8 h |
| ACS40 | 40 ± 2 | 8,000 ± 1,000 | 30–40 min | 3–8 h |
Firm grades for larger or supported molds and relatively simple shapes with limited undercuts.
| Grade | Hardness (Shore A) | Mixed viscosity (mPa·s) | Working time at 25 °C | Demold time at 25 °C |
|---|---|---|---|---|
| ACS45 | 45 ± 2 | 10,000 ± 1,000 | 30–40 min | 3–8 h |
| ACS50 | 50 ± 2 | 12,000 ± 1,000 | 30–40 min | 3–8 h |
| ACS55 | 55 ± 2 | 14,000 ± 1,000 | 30–40 min | 3–8 h |
| ACS60 | 60 ± 2 | 18,000 ± 1,000 | 30–40 min | 3–8 h |
Short working and demold times for time-sensitive molds. Prepare the master and tools before mixing.
| Grade | Hardness (Shore A) | Mixed viscosity (mPa·s) | Working time at 25 °C | Demold time at 25 °C |
|---|---|---|---|---|
| ACS-F20 | 20 ± 2 | 4,000 ± 1,000 | 5 min | 30 min |
| ACS-F25 | 25 ± 2 | 5,000 ± 1,000 | 5 min | 30 min |
| ACS-F30 | 30 ± 2 | 6,000 ± 1,000 | 5 min | 30 min |
Typical TDS values are provided for selection guidance and are not specification limits. Confirm the current grade-specific TDS and test the selected material under your own processing conditions before production.
Where Translucent ACS Makes Sense
Choose by the demands of the mold, not by translucency alone.
Select a soft or balanced grade for detailed pieces; move firmer when a larger mold needs more support.
Compare flexibility, detail reproduction and working time for repeat-use production.
Translucent Platinum Silicone FAQs
Choose ACS-F when shorter production cycles matter and its approximately 5-minute working time gives you enough time to mix and pour. Confirm the processing and demold times in the current grade-specific TDS
No. Hardness is one factor; also compare mold geometry, tear and release needs, working time and casting material.
No such family-wide claim should be assumed. Ask for current grade-specific documentation relevant to your market and intended use.
Sulfur-containing clays, amines, tin compounds, some latex materials, resins and contaminated tools may inhibit cure. Use clean, separate equipment and test the actual master before production.
CREKEM’s pourable ACS grades can be thickened with a compatible thixotropic additive for brush-on or vertical applications. Contact CREKEM for the recommended additive and dosage, and run a small trial before production.
Tell Us About Your Mold Project
Share the master, dimensions, casting material, desired hardness and production timing. CREKEM can recommend a grade and provide its current TDS.
