CCSi UltraLife molds are designed, engineered, and manufactured to produce high quality specimens, over an extended service life!
CCSi manufactures these specimen molds for determining the cracking resistance of vulcanized rubber exposed under dynamic strain conditions to a chamber atmosphere containing ozone at a fixed partial pressure, as described in ASTM D1149 “Standard Test Methods for Rubber Deterioration — Dynamic Ozone Cracking in a Chamber.” The effects of sun or ultraviolet light are excluded.
ASTM D3395 describes two procedures, Method A (tensile elongation test) and Method B (belt flex test) to determine, in a comparative sense, the degree of ozone resistance of a material under the accelerated conditions of the tests.
The Method A specimens are die cut using the CCSi D3395 Cutting Dies from the D3182 Specimen Mold. The preferred procedure for preparing Method B specimens is to use a compression mold, although they too may be die cut.
CCSi provides the OREC™ Ozone Chamber, which is suitable for performing the Dynamic Ozone Test. CCSi also manufactures molds and cutting dies used in other ozone test procedures.
Ask for Price
CCSi UltraLife molds are manufactured from homogenous, solid, high carbon content A2 mold steel. Each undergoes precision grinding and CNC (Computer Numerical Control) machining to exacting requirements. The mold cavities are expertly honed and hand polished, after which the mold is industrial chrome plated.
Precision grinding ensures a parallel surface profile of the platens and CNC machining provides ultra-close dimensional tolerances, while the honing and polishing processes guarantee smooth, true specimen cavities. The durable, hard chrome finish resists the corrosive and adhesive effects of most compounds, greatly improving overall durability and ease of maintenance.
The CCSi UltraLife mold platens are thicker than standard molds, providing superior heat and pressure distribution, as well as extending the mold’s useful life by resisting distortion. This also allows the overflow recesses to be deeper, reducing problems associated overfill. The platens are positively positioned with precision guide pins and receivers … assuring precise closure!
CCSi UltraLife molds feature a unique cam-action hinge design which improves the critical distribution of pressure. Typical ‘fixed-hinge’ designs cause material to flow, outwardly, from this constraining point. This uneven application of pressure may cause excessive overfill, or cavity voids. The cam-action hinge design has all of the advantages of ‘stacked plate’ molds, combined with the convenience of ‘fixed-hinge’ designs!
The handles are manufactured from 304 stainless steel (a chromium – nickel austenitic alloy) and contain integral support pins. This allows the handles to rotate, which facilitates opening the mold. The handles are ergonomically positioned to ease placement and removal from the heated laboratory press.
Large triangular pry slots are located at the corners, opposite the cam-action hinges. These further facilitate mold opening and reduce the occurrence of cavity damage from improperly positioned tools.
The CCSi ASTM D3395 Specimen Molds Feature:
- Exclusive UltraLife engineering;
- Designed with advanced 3D solid modeling;
- Manufactured using computerized systems and techniques;
- CNC (Computer Numerical Control) 4 axis machining;
- Precision ground;
- Expertly honed;
- Finely polished;
- High carbon content A2 mold steel;
- Thicker plates resist warping, distribute heat and pressure evenly;
- Cam action hinges prevent uneven closure;
- Industrial chrome plate finish;
- 304 stainless steel rotating handles ease opening, closing and handling;
- Deep overflow recesses (flash pockets) reduce overfill problems;
- Precision locator pins & receivers assure positive alignment;
- High strength fasteners resist the effects of strain and stress;
- Temperature probe orifices may be added for profiling;
- Optional finishes are available for highly corrosive compounds.
Available in:
- ASTM D3395 Method B UltraLife 8 Cavity Mold.
| Part Number | Mold Configuration | Specimen Size |
| CCS-MD3395B-8 | D3395B 8 Cavity, 2 Plate Specimen Mold | 100.00 x 25 x 2 mm (3.98 x 0.984 x 0.80 inch) |
molds, test specimen molds, Standard Test Methods for Rubber Deterioration – Dynamic Ozone Cracking in a Chamber, ASTM D3395, D3395, Dynamic Ozone Cracking, ozone chamber, ozone test, tensile elongation test, ozone ageing, ozone aging, ozone deterioration, rubber deterioration, belt flex test, ozone resistance, accelerated ageing, accelerated aging, dynamic strain.