TMP is able to work with any type of steel, aluminum, and titanium. We specialize in SPI A1 and all other SPI finishes including:

  • Optical molds
  • Lenses
  • Medical
  • Cosmetic
  • Aerospace
  • Automotive
  • Electronics and electronic parts
  • 3D printed steel molds can be polished to a mirror finish (SPI A2)

Other areas of specialization are as follows:

  • Precision lapping
  • SPI A1 Optical diamond finishing
  • Precision/Polishing to very close tolerances
  • Sine plate work
  • Removing orange peel
  • Benching
  • De-burring
  • Repairs
  • Glass-bead: very fine matte finish up to Aluminum Oxide coarse finish

Industrial Hard Chrome, Recovery, and Other Plating Operations

Do you have a nicked, broken or damaged part or mold that you would like to recover? TMP has affiliations with a local welding company that specializes in laser weld mold repair along with other welding and joining services, ensuring full service with the highest quality to meet our customers’ needs—regardless of complexity of the repair.


Tucker's Mold Polishing can accomodate molds that weigh anywhere from 1 lb. to 4000 lbs.


We will pick up and deliver; we can ship via:

  • UPS
  • FedEx
  • FedEx Freight
  • Bax Global
  • UPS Express Critical (Southwest Airlines same day or next morning)

Special delivery provided upon request.

SPI Surface Finishes

Types of FinishesCurrent SPI Finish NumbersDescription and Previous Finish NumbersRoughness Comparison R.A.
Diamond#3 Diamond BuffA1is comparable to#10-1
#6 Diamond BuffA2is slightly finer than#21-2
#15 Diamond BuffA3has more imperfections than2-3
Paper600 GritB1is finer than#32-3
400 GritB2is slightly finer than4-5
320 GritB3is comparable to9-10
Stone600 StoneC1is finer than#410-12
400 StoneC2is slightly finer than25-28
320 StoneC3is comparable to38-42
Dry Blasted#11 Glass BeadD1is finer than#510-12
240 Aluminum Oxide BlastD2is comparable to26-32
#24 Aluminum Oxide BlastD3is a little more coarse than190-230


Diamond Buff

All mill, grind, and EDM is removed before polishing.
A2 finish is #3 diamond compound
A3 finish is #9 diamond
Photo of Example Finishes SPI A1, A2, A3 - Diamond


Photo of Example Finishes SPI 600, 400, 320 - Paper

Sandblast/Glass Bead

Photo Example Finishes SPI Very Fine, 240 grit, 80 grit - Dry Blasted


Photo of Example Finishes SPI 600, 400, 320 - Stone
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