Interior Photopolymer Processing Guidelines – When fabricating Novacryl photopolymer interior signage, use only factory approved equipment manufactured by Nova Polymers in the US. Observe ALL Processing Guidelines for Peak Performance and to ensure ADA Compliance. Contact us at [email protected] with any processing questions.
*Recommended Processing Times for INTERIOR*
|Main Exposure||With proper vacuum and UV [email protected]||2:00-4:00 Minutes|
|Washout||Tap water at room temperature (65-75F)||5:00 Minutes|
|Dry||Preheat dryer to 43C (110F)||20:00 Minutes|
|Post Exposure||5:00 Minutes|
|Processing Note: Please use caution when handling all photopolymer material immediately after processing. Strength will increase over 24-48 hours. You may wish to filter wastewater before discharging into sewer. Refer to SDS for the recommended concentration of photopolymer effluent for disposal. Consult local authorities for regulations in your area. Please consult Nova Technical Support if any of the above processing times fail to produce satisfactory results.|
- PREHEAT DRYER TO 43 DEGREES CELSIUS (110F)
Dryer temperatures in timer activated units can fluctuate when heating elements flare to raise dryer temperatures. The elements often cause the internal temperature to rise well above desired settings before regulating. Dryers are more efficient if they remain on throughout the process phase. Continuous dryer activation eliminates hot spots and potential damage to the PETG thermoplastic base of Novacryl and PVC foam base of NovaColour.
- CUT AS NEEDED PRIOR TO PROCESSING FOR OPTIMUM YIELD.
Shear cut with a 30-degree blade (Accu Cutter model available from Nova Polymers) or table saw with a blade rated for flexible plastics (PETG, Polycarbonate). Shearing is preferred for thickness up to 1/8”. If you are cutting custom shapes in advance with a router table, flip the unexposed photopolymer upside down and rout shapes with a two-flute upward spiral carbide bit.
- PREPARATION FOR FINISHING (AFTER PROCESSING).
When routing custom shapes with a template, separate signs using shear or band saw leaving no more than 1/2″ over. Use “Finishing Shears” and “Corner Mate” to cut photopolymer to finished size. Any straight edge or radius corner can be applied with proper shears. All Novacryl products with a base thickness up to 1/8 can be sheared to a finished edge suitable for paint.
- ROUTING RECOMMENDATIONS:
Use a 1/2″, 3 flute McMaster-Carr bit #35505A65 or a 3/4″ two flute straight bit or DML #01401 (1/2″ shank, 3/4″ Diameter) 2 flute helix trim bit. For table routers, use a two-flute upward spiral carbide bit. -OR-Use the 13000 Series Spiral “O” Belin Yvon S.C. Router Bit. For 1/8″ Novacryl use Tool# 13317 – CED 1/8″, CEL 1/2″, SHK DIA 1/4″, OAL 1-1/2″ at RPM 18,000 with a Feed Rate of 140. To place a bevel, we suggest using Belin Bevel 00182 CC05 QL. The link to this website is www.belintools.com. The bits referenced can be located on page 5.
Technical Data and Downloads
Click here to download the processing guide
Click here to download instruction for exposing ECR with Silver Mask Strips