From project brief to approved production
Custom graphic overlays are quoted and produced from project-specific drawings, materials, printing requirements, forming methods, quantities, and finishing details. A clear brief reduces quotation questions, sampling revisions, and production risk.
Information that supports an accurate quote
Start with the drawing and expected purchase quantity. Then confirm the details that affect material selection, tooling, printing, installation, and final inspection.
| Project area | Information to provide | Why it matters |
|---|---|---|
| Product information | Product dimensions, structure, hole positions, and other drawing information. | Defines the physical fit, machining route, and inspection points. |
| Material requirements | Material type, thickness, and surface condition. | Affects rigidity, appearance, forming method, and processing feasibility. |
| Printing requirements | Artwork content, colors, light-transmission, or backlight requirements. | Supports color, ink, print-side, and special-effect confirmation. |
| Other requirements | Adhesive, packaging, installation method, and other special requirements. | Helps identify compatible lamination, protection, packing, and handling needs. |
| Commercial inputs | Expected purchase quantity and any target schedule or delivery requirement. | Allows the quotation to reflect quantity, production planning, and commercial terms. |
- Drawing or modelProduct outline, dimensions, holes, slots, cutouts, and assembly features.
- Artwork and colorTrim size, logo/text, print sequence, Pantone or color references, transparency, and backlight areas.
- Material directionAcrylic, PC, PET, thickness, surface finish, and expected application environment.
- Commercial scopeQuantity, packaging, delivery destination, trade term, and any required shipping documents.
A traceable path from drawing to delivery
The standard workflow keeps quotation, artwork approval, sampling, production, and after-sales decisions tied to written records.
Submit drawings and requirements
Provide the product drawing, expected purchase quantity, and basic customization requirements. If information is incomplete, Spar Panel will confirm the key details affecting quotation and production feasibility.
Confirm material, process, and forming method
Spar Panel reviews the drawing and confirmed requirements for material, printing, forming, and downstream processing feasibility. Routine production feasibility review is part of the quotation process and is not charged separately.
Receive the quotation
The quote is based on the submitted drawing, quantity, dimensions, material and thickness, printing, CNC or die-cutting, adhesive, surface treatment, packaging, and other custom requirements.
Approve the drawing and artwork
Before sampling, both sides confirm the drawing, artwork, and key production requirements. Review items include:
- Product dimensions, hole positions, and structure
- Material and thickness
- Printed content, logo, text, and graphics
- Color and Pantone references
- Window, transparent, translucent, or light-diffusion areas
- Adhesive and other key production requirements
Confirmation should be completed by email, an approval file, or another traceable written method.
Produce the sample
The sample verifies appearance, dimensions, color, print effect, hole structure, installation fit, window condition, and light-transmission effects.
Test and approve the sample
The customer checks the sample against the actual application, including appearance, dimensions, color, printing, structure, installation fit, and other project requirements. Mass production proceeds only after sample approval.
Production basis: the final approved drawing or artwork, approved sample, order requirements, and mutually confirmed quality requirements.
Confirm any revisions
Changes to the drawing, material, dimensions, structure, color, printing, adhesive, or other key requirements must be reconfirmed. A revised sample may be required. Re-sampling, die or mold, material, and processing costs are determined by the project scope and reason for the change.
Start mass production
Production begins after the final drawing or artwork, sample, order requirements, and payment conditions are confirmed. If confirmed requirements change after production starts, material, tooling, completed quantity, cost, and schedule must be reassessed.
Delivery and after-sales support
If a delivered product does not match the confirmed drawing, sample, or quality requirements, provide the order or batch information, affected quantity, photos or video, and a clear issue description. Spar Panel will verify the information and discuss a resolution based on the actual project situation.
Common material routes for custom overlays
Material selection should follow the drawing, application environment, appearance target, thickness, installation method, and required durability. The final route is confirmed during quotation.
What determines the quotation
| Item | Details |
|---|---|
| Quote basis | Product drawing, purchase quantity, dimensions, material and thickness, printing requirements, CNC or die cutting, adhesive, surface treatment, packaging, and other custom requirements. |
| Quotation time | After the project information is complete, standard projects are normally quoted within 1 business day. |
| Additional costs | Sampling, die, mold, or other dedicated tooling costs are quoted separately according to the specific project. |
| Price structure | Products are custom made and priced according to the drawing, process, and purchase quantity. Different quantities can be quoted separately. |
Approve the physical standard before production
The sample is the practical reference for appearance, fit, and project-specific requirements. Keep the approved sample and written approval record available for production and final verification.
| Item | Details |
|---|---|
| Standard sampling period | 3–5 business days. |
| Sampling fee | Samples are normally charged according to the project agreement. A free sample may be requested in special cases. |
| Sample-fee offset | Some projects may offset the sample fee against a subsequent mass-production order, subject to the agreed project terms. |
| Die or mold cost | If a dedicated die, mold, or other tooling is required for sampling or production, the cost is confirmed before quotation or sampling. |
| Revision impact | Changes to appearance, structure, installation, material, color, or artwork may require a new sample and may affect price or schedule. |
Freeze the revision before approving the sample
Use one drawing and artwork revision number for quotation, sampling, approval, and production to avoid mismatched files.
Conditions that trigger mass production
| Item | Details |
|---|---|
| Production start conditions | Final drawing or artwork, approved sample, order requirements, and payment conditions are confirmed. |
| Standard production period | 10–15 business days. |
| Production basis | Final confirmed drawing, artwork, approved sample, order requirements, and mutually agreed quality requirements. |
| Quality control | Process inspection and finished-product inspection are performed according to project requirements. |
| Change control | Changes after production begins require reassessment of material, tooling, completed quantity, cost, and delivery schedule. |
Protect the product and confirm the commercial terms
| Item | Details |
|---|---|
| Packaging | Protective packaging is selected according to product dimensions, material, surface requirements, and shipping method. |
| Shipping methods | International express, air freight, sea freight, customer-designated freight forwarder, or freight-collect account can be arranged according to the project. |
| Express carriers | Project shipments may use carriers such as FedEx, UPS, DHL, or TNT. |
| Shipping documents | Documents such as a packing list, commercial invoice, and certificate of origin can be provided according to the project. |
| Trade terms | Terms such as DAP or FOB can be used according to the project and are confirmed in the order. |
