Navigating the complexities of elastomer manufacturing requires a partner with deep technical expertise. At ACO Mold, we specialize in producing high-quality custom silicone rubber parts tailored to your exact specifications. Unlike generic plastic injection, silicone molding—whether Liquid Silicone Rubber (LSR) or High Consistency Rubber (HCR)—demands precise control over temperature, pressure, and curing times. With extensive experience in silicone rubber laser engraving, painting, and light transmission, we offer end-to-end solutions from prototype to mass production, ensuring your components meet the highest industry standards for durability and performance.
Silicone rubber is a versatile elastomer ideal for demanding environments. Based on our experience, key advantages include:
Performs reliably in temperatures ranging from -60°C to +230°C (-76°F to +446°F), suitable for automotive engine compartments and industrial sealing.
Maintains elasticity across a wide hardness range (Shore A 10-80) without cracking or degrading.
Resistant to ozone, UV radiation, and various chemicals, making it perfect for outdoor and medical applications.
Compatible with FDA and LFGB standards for food-grade and medical-grade products.
We leverage advanced molding technologies to meet diverse project requirements, balancing cost-efficiency with precision.
Ideal for high-volume production of complex, small parts (e.g., medical valves, baby products). LSR offers excellent flowability and allows for over-molding onto plastics like Nylon or Polycarbonate.
For low-to-medium volume runs or large parts, we utilize compression molding. This technique significantly reduces initial tooling costs while maintaining structural integrity, making it a cost-effective choice for gaskets and seals.
Transparency in manufacturing builds trust. Here are the typical parameters for our silicone molding services:
Parameter
Specification
Materials
LSR (Liquid Silicone Rubber), HCR (High Consistency Rubber)
Hardness Range
Shore A 10 to 80 (Customizable per request)
Tolerance
Standard ±0.05mm to ±0.1mm (Depends on geometry)
Certifications
FDA, LFGB, RoHS, REACH Compliant options available
Lead Time
Prototypes: 2-3 weeks; Mass Production: 3-5 weeks
ACO provide quotation in 24 hours with detailed mold solution and pricing based on your product requirements and budget, much more than just a price, through quotation process our professionals offer you one stop consultation service including design, manufacturing, molding production, packing and shipping, lead time etc.
Within 1-2 days we evaluate your part design and provide optimized proposals for better performance and manufacturability, present you the concept of the mold design for initial evaluation.
Once DFM report agreed, the detailed 3D mold design will be completed in 2-3 days.
Typically mold making takes 3-5 weeks depends on complexity, we provide weekly report with photos and video to keep you updated with each steps of machining job along the whole processing.
Once the molds are completed, we will set it up for mold trial to verify the injection mold mechanism functionality and product completeness/accuracy, 5-10 shots free samples will be sent to customers for evaluation.
We might not get 100% prefect injection mold/molded parts at the first time mold trail due to machining, fitting, parameter setting etc., usually it takes 1-2 rounds modification and mold trail before the mold is ready for mass production.
We get into mass production once the mold is verified and sample approved by customers, internal quality acceptance standard will be aligned to the samples approved by customers, mass production lead time depends on the demand quantity, mold production cycle.
Standard packing method are PE bags and carton box, special case may need extra care and sometimes customized packing method, we provide door to door shipping services at customer’s request by sea freight, air freight and train freight.
We keep your molds in secure storage and do regular maintenance to ensure the mold is immediate ready for your new demands, we keep all production data in records and do repeat orders accordingly to provide you consistently high quality parts from batch to batch.
Please free no hesitation to ask questions.
A: LSR (Liquid Silicone Rubber) is a two-part liquid system ideal for high-speed injection molding and complex parts. HCR (High Consistency Rubber) is a solid gum that requires compression or transfer molding, typically used for larger parts or lower volumes where tooling cost is a concern.
A: Absolutely. We provide a FREE DFM (Design for Manufacturability) analysis before you commit to payment. Our engineers will suggest modifications to improve mold flow, reduce defects, and lower production costs.
“We needed a reliable partner for a high-precision silicone keypad project. ACO Mold’s ability to deliver consistent quality straight out of the mold saved us significant time in secondary operations.”
Challenge:
The client required mass production of a multi-button silicone keypad featuring precise tactile feedback and clear, durable markings. Key challenges included maintaining a consistent Shore A 40±5 hardness across all buttons and ensuring the laser-engraved legends were perfectly centered and legible without affecting the surface finish.
ACO Mold’s Solution:
We recommended High Consistency Rubber (HCR) Compression Molding, which is ideal for medium-volume production runs requiring high elasticity and cost-efficiency.
Design Validation: Conducted a quick DFM review to optimize wall thickness, preventing sink marks on the large button surfaces.
Integrated Process: Utilized our in-house laser engraving capabilities immediately after molding. This ensured perfect alignment between the molded buttons and the printed characters, avoiding the need for manual positioning.
Tolerance Control: Machined the mold cavities to tight tolerances (±0.05mm) to ensure consistent actuation force across the entire keypad matrix.
