All Products

Receb

The Client wants you to produce their product because they were glad with the results with your former productions.
Sean

Good teamwork – good suppliers, fast actions and good people on both sides working together …. Thankyou.
Chris

Thanks for caring enough to react, think differently and innovate with us – here again on this occasion to find this alternative – much appreciated from us in RnD,
Raffy

Yes, you are doing excellent job, thank you Welson, I undesratnd it is so difficult

Contact Person : Welson

Phone Number : +86 18965147291

WhatsApp : +8618965147291

Precision Injection Molding Service with SPI A1+ Diamond Polish, 50+ Chemical Texture Patterns, and 5-Axis Laser Engraving

Place of Origin	Xiamen, China
Brand Name	KDET
Certification	ISO 9001:2015, IATF 16949
Model Number	KD-SF-SP014
Minimum Order Quantity	500 pieces
Price	Based on complexity and volume
Packaging Details	Custom PE bags + export cartons + pallets
Delivery Time	15-30 days mold; 7-15 days production
Payment Terms	T/T, L/C, PayPal
Supply Ability	5,000,000 pieces per year

Product Details

SPI Finishes	A1-A3 (polish), B1-B3 (paper), C1-C3 (stone)	Chemical Textures	Mold-Tech, Yick Sang, Tanazawa - 50+ Patterns
Optical Polish	SPI A1+ Diamond, Ra ≤ 0.025μm	Laser Engraving	5-axis, 20μm Resolution
EDM Textures	VDI 12-45, Custom Patterns	Draft Guidance	Provided In DFM Report
Certification	ISO 9001:2015
Highlight	SPI A1+ Diamond Polish Injection Molding Service , 50+ Chemical Texture Patterns Injection Molding , 5-Axis Laser Engraving Plastic Injection Molding

Leave a Message

Product Description

KDET offers an extensive range of surface finish options for injection molded parts, from optical-grade mirror polish (SPI A1) to deep chemical textures and custom laser engraving. Our in-house polishing and texturing capabilities enable us to achieve the exact aesthetic, tactile, and functional surface requirements for your components — eliminating the need for secondary finishing operations. Since 2007, we have developed finishing expertise that covers the full spectrum from high-gloss cosmetic surfaces for consumer products to functional textures for grip, paint adhesion, and light diffusion applications.

Company Strength: 18 years of injection molding excellence since 2007 | ISO 9001:2015 & IATF 16949 certified | 40-50 skilled professionals | 80%-90% export to 30+ countries | 5,000,000+ pieces annual capacity | Full in-house tooling, molding, QC, and global logistics from Xiamen, China.

Product Solutions

KDET delivers world-class surface finish options solutions engineered to meet the demanding requirements of global OEM manufacturers. With 18 years of industry experience, ISO 9001:2015 and IATF 16949 certifications, and a fully integrated manufacturing facility, we provide comprehensive solutions from initial engineering consultation through tooling, production, quality assurance, and international logistics. Our structured project management methodology ensures transparent milestones, clear communication, and documented quality verification at every stage.

Key Features

SPI Standard Finishes: We achieve the complete range of SPI (Society of the Plastics Industry) mold finishes — A1 (Grade #3 Diamond, 0-1μm Ra mirror), A2 (Grade #6 Diamond, 1-2μm Ra high polish), A3 (Grade #15 Diamond, 2-3μm Ra medium polish), B1 (600 Grit Paper, 2-3μm Ra), B2 (400 Grit Paper, 4-5μm Ra), B3 (320 Grit Paper, 6-8μm Ra), C1 (600 Stone, 10-12μm Ra), C2 (400 Stone, 15-20μm Ra), and C3 (320 Stone, 25-30μm Ra).
Chemical Etching & Texturing: We partner with Mold-Tech, Yick Sang, and Tanazawa for standardized chemical textures ranging from fine matte (MT-11000 series) to coarse leather grain (MT-9000 series). Over 50 standard texture patterns are available with consistent repeatability across multiple molds.
Laser Engraving & Micro-Texturing: Our 5-axis laser engraving system creates micro-textures, logos, serial numbers, and functional surface patterns (hydrophobic, light-diffusing, anti-glare) with feature resolution down to 20μm.
EDM Spark Erosion Textures: Graphite and copper EDM electrodes produce precise spark-eroded textures for technical surfaces where controlled roughness is required for bonding, painting, or functional grip — with Ra values reproducible within ±10%.
Diamond Polishing for Optics: Our skilled polishers achieve optical-grade SPI A1 finishes (Ra ≤ 0.025μm) on mold cavities for transparent PMMA and PC lenses, light guides, and display windows requiring maximum light transmission and minimal surface defects.
In-Mold Decoration Compatibility: Our surface finishes are optimized for compatibility with in-mold labeling (IML), in-mold decoration (IMD), and painting processes, ensuring proper adhesion and appearance of decorated surfaces.

Technical Specifications

Parameter	Specification
SPI Polish Finishes	A1 (mirror, 0-1μm Ra), A2 (high polish, 1-2μm Ra), A3 (medium polish, 2-3μm Ra)
SPI Paper Finishes	B1 (600 grit, 2-3μm Ra), B2 (400 grit, 4-5μm Ra), B3 (320 grit, 6-8μm Ra)
SPI Stone Finishes	C1 (600 stone, 10-12μm Ra), C2 (400 stone, 15-20μm Ra), C3 (320 stone, 25-30μm Ra)
Chemical Textures	Mold-Tech (MT-9000 to MT-11000 series), Yick Sang, Tanazawa — 50+ standard patterns
Laser Engraving	5-axis laser; 20μm minimum feature; Logos, serial numbers, micro-textures
EDM Textures	VDI 3400 standard (VDI 12 to VDI 45); Custom spark erosion patterns
Optical Polish	SPI A1+ diamond polish; Ra ≤ 0.025μm for transparent optical components
Texture Depth Range	0.01mm (fine matte) to 0.5mm (deep leather grain)
Draft Angle Impact	Texture depth * 1.5° additional draft per 0.025mm depth (Mold-Tech guideline)

Industry Applications

Consumer Electronics: High-gloss SPI A1/A2 finishes on smartphone cases, laptop housings, and wearable devices; fine matte textures on remote controls and audio equipment; laser-etched logos and regulatory markings.
Automotive Interior: Leather-grain chemical textures on dashboard panels and door trim; soft-touch matte finishes on control surfaces; high-gloss piano black finishes on center console components.
Medical Devices:Smooth, cleanable SPI A2/B1 finishes on diagnostic equipment housings; textured grip surfaces on surgical instruments; laser-marked measurement scales and identification codes.
Cosmetic Packaging: Mirror-polished SPI A1 surfaces on luxury packaging components; soft-touch matte textures on premium containers; laser-engraved brand logos and decorative patterns.
Optical Components: Diamond-polished SPI A1+ finishes on LED lenses, light guide panels, and display windows where surface quality directly impacts optical performance.

Industry Success Case: A luxury cosmetic brand required a compact case with mirror-polished SPI A1 exterior surfaces and a soft-touch matte interior for their premium product line. Our polishing team achieved Ra 0.8μm on the exterior cavities using progressive diamond polishing from Grade #30 to Grade #3. The interior received a Mold-Tech MT-11020 fine texture for a premium tactile feel. Parts were molded in high-gloss ABS with zero visible surface defects under 2000-lux inspection lighting. The client used our components for their global product launch, and surface quality was cited as a key differentiator in customer reviews.

Production Cycle

Engineering Review & DFM: 2-5 working days — Design analysis, simulation, and feasibility report
Mold Design & Approval: 3-7 working days — Full 3D mold design for client sign-off
Mold Manufacturing: 15-30 working days — Precision machining, EDM, heat treatment, assembly
Mold Trial & Samples: 2-3 working days — T0 samples with dimensional inspection report
Production & QC: 7-15 working days — Full production with SPC and in-line inspection
Packaging & Shipment: 2-5 working days — Professional export packaging with documentation

MOQ & Delivery Terms

Parameter	Details
Minimum Order Quantity	500-5,000 pieces depending on part size and complexity
Mold Lead Time	15-30 working days
Sample Lead Time	3-5 days with existing molds; 5-15 days with new tooling
Production Lead Time	7-15 working days after sample approval
Payment Terms	T/T 30% deposit, 70% before shipment; L/C at sight available
Shipping Methods	Sea freight (15-40 days), Air freight (3-7 days), Express (3-5 days)
Packaging	Custom PE bags + export cartons + fumigated pallets

Frequently Asked Questions

Q: What surface finish do you recommend for transparent parts?

A: For transparent optical components (lenses, light guides, display windows), we recommend SPI A1 diamond polish (Ra ≤ 0.025μm) on both cavity and core surfaces. For general transparent parts (containers, covers), SPI A2 (Ra 1-2μm) provides excellent clarity with lower polishing cost. The specific recommendation depends on your optical clarity requirements and target cost.

Q: How does surface texture affect mold cost?

A: Mirror polish (SPI A1) adds approximately 10-15% to cavity machining cost due to skilled hand polishing time. Chemical textures add 5-10% for the texturing service. EDM textures are part of the standard EDM process and carry no additional cost. Laser engraving is priced based on surface area and pattern complexity — typically $50-$200 per cavity for standard logos.

Q: Can you match a texture on an existing part?

A: Yes, we can match existing textures by analyzing a sample part or texture plaque. For chemical textures, we match against the Mold-Tech or equivalent reference library. For custom textures, we can laser-scan the existing surface and reproduce the pattern. Texture matching typically requires a reference sample and may add 3-5 days to the mold manufacturing timeline.

Q: Do textured surfaces require additional draft angle?

A: Yes. The general rule is 1.5° of additional draft angle per 0.025mm of texture depth. For example, a 0.1mm deep leather grain texture requires approximately 6° of additional draft beyond the base draft angle for the part geometry. Our DFM analysis will review your part design and recommend the required draft angles for your specified surface finish.

Tags:

Injection Molding Services

Plastic Injection Molding Service

Dual Shot Injection Molding