GLASS PREPARATION POLISHING PADS

In general, the uses for common glass is too numerous to mention. Many glass polishing requirements these days are still based on the traditional optics industry requirements. Plano and spherical lens, filters, cover plates and others comprise much of the applications needs. LCD’s, micro-lenses, photomasks and other scientific/medical requirements demand the use of Spartan Polishing Pads for defect free surfaces. Edge polishing is also possible with special pads and wheels designed by Spartan’s engineering staff.

POLISHING PAD DETAILED INFORMATION

All pads are available plain and perforated. Embossing is available, but limited. Please inquire about specific applications.

All pads are available with our own specially developed PSA, magnetic or loop backing to be used with various hook attachments. We currently have 2 types of PSA that cover 2 specific markets. Our standard is for the glass industry is one that resists temps up to 120F, peels easily from the plate and can actually be reapplied. Our second type of PSA is a 3M product that is temperature resistant up to 160F, resistant of Ph changes from 5 to 10, but may leave some adhesive on the plate (depending on how it is run and removed).

SPARTAN DUROTEX™ | HPB35 |HPC50 | Spartan Gray High Tech G/B Pad

Spartan Polishing Pad Division

SPARTAN DUROTEX™

DESCRIPTION:	Spartan DuroTex™ expanded polyurethane materials are designed and manufactured to polish a wide variety of materials in a singlesteptype process. These materials include optics, electrooptics, semiconductor, aluminum discs, LCD/plasma display and ceramic compositions. Using conventional and applicationspecific slurries, it is possible to achieve excellent flatness and surface finishes with minimum edge rolloff without sleeking and scratching from free abrasives. Spartan offers two grades of material densities and cerium oxide impregnation concentrations. DuroTex™ is available in two standard sheet sizes (typically 2.3 mm thickness), plain or with PSA backing. Grooving of the surface is possible upon request.
DUROTEX 1
THICKNESS:	0.5 – 2.5mm
DENSITY:	0.67 g/cm3
WIDTH:	400 x 700mm or 1m x 1m
HARDNESS:	93 Shore A
POLYURETHANE:	65 – 75%
CERIUM CONTENT:	25 – 35%
DUROTEX 2
THICKNESS:	0.5 – 2.5mm
DENSITY:	0.55 g/cm3
WIDTH:	400 x 700mm or 1m x 1m
HARDNESS:	90 Shore A
POLYURETHANE:	75 – 85%
CERIUM CONTENT:	15 – 25%

HPB35 POLISHING MATERIAL

DESCRIPTION:	White fiber based resin treated polyurethane pad for diverse polishing applications and surfaces. The fiber material makes excellent interconnecting cellular structures, which make the pad highly durable and dimensionally stable. This material is designed for rapid stock removal and superb surface finishes.
FOR USE ON:	Art Glass Polishing, Soft Scientific Glass Polishing and Polycarbonate Polishing
DUROMETER:	Shore C Scale 35
COMPRESSION %:	5-7% (4 pound force displacement)
DENSITY:	.35 g/cm3
THICKNESS:	.125” and .275”
DIAMETER:	Up to 53 Sheets and Pads
SURFACE PREPARATION:	Plain, Perforated or Embossed.
BACKINGS:	Easy Apply/Remove PSA is Standard. High Temperature PSA and Magnetic Backing are Available Upon Request.
IMPREGNATIONS:	Abrasive Impregnates in limited styles.
CAN REPLACE:	Natural Wool and Other Soft Synthetic Felts
PERFORMANCE:	HPB35 is our softest and most forgiving pad. Designed for hand polishing, HPB35 retains a high amount of water for efficient slurry delivery with various sized parts and under a wide variety of pressures and polishing styles.

HPC50 POLISHING MATERIAL

DESCRIPTION:	White fiber based resin treated polyurethane pad for diverse polishing applications and surfaces. The fiber material makes excellent interconnecting cellular structures, which make the pad highly durable and dimensionally stable. This material is designed for rapid stock removal and superb surface finishes.
FOR USE ON:	Hard Glass, Crystal, Ceramic Seals and Sapphire
DUROMETER:	Shore C Scale 65
COMPRESSION %:	3-5% (1/2 pound force displacement)
DENSITY:	.54 g/cm3
THICKNESS:	.050” and .150”
DIAMETER:	Up to 39.5” in Sheets or Pads
SURFACE PREPARATION:	Plain, Perforated or Embossed.
BACKINGS:	Easy Apply/Remove PSA Is Standard. High Temperature PSA Magnetic Backing are Available Upon Request
IMPREGNATIONS:	Abrasive Impregnates in limited styles.
CAN REPLACE:	SUBA 500, IC
PERFORMANCE:	HPC50 is our hardest standard pad to date. The HPC50 is designed for use in mechanical polishing where flatness is the highest priority. HPC50 is still able to offer an exceptional finish quality and carry the abrasive as efficiently as our other pads. HPC50’s aggressive delivery of the slurry can reduce cycle time; run process pressure and wear and tear on polishing machines while improving your average polish quality and consistency.

Spartan Gray High Tech G/B Pad

DESCRIPTION:	This material is a polymer, porous, cubic-structure, nonwoven, synthetic leather material. It has excellent surface wear resistance, high liquid absorbing ability and good resistance to shear mechanical stresses. It has a textured gray appearance with micro voids for improved slurry distribution. It is available in plain, embossed or perforated textured surfaces upon request. It can be compared to Diamex Alpha 125 or Eminess Suba pads.
FOR USE ON:	Hard Glass, Crystal, Ceramic Seals and Sapphire
DUROMETER:	56+/- 5 (Asker C)
COMPRESSION %:	9% +/-5%; 80% +/- 20% Recovery
THICKNESS:	1.30mm +/- 0.05 (~.050”)
DIAMETER:	Up to 53” pads
IMPREGNATIONS:	Non-impregnated; designed to be used with colloidal silica, cerium oxide, alumina, etc.
Chemical Resistance	Acid: pH 1-7 Caustic: pH 7-13
Heat Resistance of Pad Material	190˚C (~374˚F) for pad bulk matrix; application requirements depend on specific PSA rating.

Spartan Felt Company - 151 Felt Drive - Roebuck, South Carolina USA 29376
Telephone - (864) 576-7919 | Fax - (864) 574-4507