micro molding


Minnesota Rubber and Plastics is a global solutions provider of elastomer and thermoplastic components and assemblies to the medical device, transportation, and water industries. With over 70 years of experience in engineering design and advanced materials development, we are a technology leader in the miniaturization of parts for demanding applications.

Features & Benefits

Micro Molding
  • Full selection of process solutions (overmolding, 2-shot, etc.)
  • Optimize complex geometries
  • Meet tight tolerance targets
  • High precision shot control
  • Final inspection in 10,000 & 100,000 clean room environment — ISO Class 8
  • Press capacity down to 5 ton
  • Accurately produce parts weighing less than 0.1g

Why partner with Minnesota Rubber and Plastics?

  • Full range of manufacturing processes
  • Integrated components
  • Proprietary compounds that meet regulatory requirements
  • Design development expertise
  • Global manufacturing footprint

Let us solve your MICRO application needs!

For simple geometry using our standard APEX material portfolio lead time is 1-5 weeks after receipt of order; quantities up to 100 pieces per tool cavity. [Note: This is dependent on the complexity of the geometry and part size.] For other customized design and material(s) please contact one of our Customer Service Representatives at 1-800-927-1422 for a quotation.

Advanced Materials

Minnesota Rubber and Plastics' standard APEX material portfolio is widely used in commercial applications for the medical device, transportation, and water industries.

For more information on our standard APEX material portfolio please contact our Regional Sales Manager in your area or one of our Customer Service Representatives at 1(800)927-1422. Utilizing high performance elastomers and thermoplastics our team of experts will identify the right material for your application.


Duckbill Valve

Duckbill Valve

Material: Silicone
Weight: 0.044g

Bead Seal

Bead Seal

Material: Silicone
Weight: 0.009g

Elastomer Qmonix®
Hardness, Shore A 73 73 51
Tensile Strength, psi 1472 1520 1598
Elongation, % 134 193 485
Modulus @ 100% Elong 975 644 274
Tear Die Cut, ppi 69
Specific Gravity 1.12 1.85 1.14


Pinon Gear

Pinon Gear

Material: PEEK
Weight: 0.11 g

Hinge Bushing

Hinge Bushing

Material: POM
Weight: 0.05g

Thermoplastic Continuous Use °C Glass Transition °C HDT @ 264 psi °C HDT @ 66 psi °C
PAI 250 275 279
PI 288 250 246
PES 117-204 224 204-238 216-238
PEI 117-204 213 199-216 204-227
PSO 149-171 190 171-182 177-188
PEEK 204-232 143 177-321 227-338
PPA 204-232 134 277-285 293-301
PPS 204-232 92 149-288 204-260