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Conversion service

Die-cut electrical and thermal insulation parts, made to your drawing

Perfect Insulations die-cuts electrical and thermal insulation parts to customer drawings at its works in Bengaluru, India. Parts are cut by steel-rule die from Nomex and aramid paper, Mylar polyester and PET film, silicone and fibreglass-reinforced thermal pads, FRP epoxy-glass sheet and PU foam, held to ±0.2 mm, and supplied in OEM quantities across India.

±0.2 mmDie-cut tolerance, or as agreed on the drawing
7–14 working daysCustom die-cut parts, from drawing approval
Since 1995ISO 9001:2015, Bengaluru
DXF / PDF / sampleDrawing formats accepted for quotation

Conversion processes

All conversion is done in-house under one roof, with the same three-stage inspection — incoming material check, in-process dimensional check, final inspection before dispatch — for catalogue grades and custom parts alike.

Materials we die-cut

Thicknesses and ratings are the stock options listed in the catalogue; other thicknesses are produced to order against a drawing.

MaterialGradesThickness / ratingSupplied as
Silicone thermal padsCP100, LED-DRV, CP150, CP200, CP300, CP6000.5–3 mm, 1–6 W/m·KSheet (200×400 / 300×400 mm) or die-cut; adhesive or non-adhesive
Fibreglass-reinforced TO-package pads10 stock outlines — size table5 grades, 1–2 W/m·KDie-cut to TO-220, TO-247, TO-264 and TO-3P outlines, mounting hole pre-punched where listed
Other thermal and gap-filler padsTO-220, TO-3P, SIL-PINK, HTP-PLATE, EXCH-EL, GREY-PAD0.3–3 mm, 1–3 W/m·KSheet or die-cut
Ceramic (alumina) thermal padCER-AL2O30.5–1 mm, 24 W/m·KSheet or die-cut
FRP epoxy-glass laminateFRP-FR4, FRP-G10, FRP-G111.5–3 mmSheet (300×300 mm to 1000×1000 mm) or cut to drawing
Mylar polyester filmMYLAR-DC0.1–0.3 mmSheet, roll or die-cut
PET filmEL-PET36–350 µmDie-cut to drawing
DuPont insulationDUPONT-DCTo drawingDie-cut slot liners, phase barriers, spacers and formed parts
Aramid paperEL-ARAMID2–30 milDie-cut to drawing
Garflex laminate (aramid–polyester–aramid)Electrical insulation range140–470 µmDie-cut to drawing
Micro-cellular PU foamPU foam pads and sheetsThickness to orderSheet or die-cut pads and gaskets; flame-retardant grades on request

Typical die-cut parts

Tooling, minimums and lead time

A new outline needs a new steel-rule die. The die cost is charged once and reused on every repeat order. Parts to a new drawing are quoted per job; stock TO-package shapes start at 50 pieces and standard sheet grades at 10 sheets.

Custom die-cut parts ship 7–14 working days from drawing approval. All prices exclude 18% GST; tax invoices carry GSTIN 29BALPM6704P2ZW, billed as CGST+SGST within Karnataka and IGST for other states. Delivery is by courier across India from Bengaluru, or surface freight for bulk consignments.

What to include with an enquiry is set out in the die-cut RFQ checklist.

Frequently asked about die-cut parts

What insulation materials does Perfect Insulations die-cut?

Silicone thermal pads, fibreglass-reinforced silicone pads for TO-220, TO-247, TO-264 and TO-3P packages, ceramic (alumina) pads, Nomex and aramid paper, Mylar polyester and PET film, DuPont insulation, Garflex laminate, FR4/G10/G11 epoxy-glass sheet and micro-cellular PU foam.

Where are the die-cut parts made?

In-house at the Perfect Insulations works in Bengaluru, Karnataka — steel-rule die cutting, punching, bending and folding, and slitting — and dispatched across India.

What dimensional tolerance do die-cut parts hold?

Die-cut and cut-to-size parts are manufactured to ±0.2 mm, or to the tolerance agreed on the drawing. Parts outside tolerance are replaced at no cost.

Is there a tooling charge for a custom die-cut part?

A new outline needs a new steel-rule die. The die cost is charged once and the same die is reused on every repeat order, so the per-part price falls as volume rises.

What is the lead time for custom die-cut parts?

7–14 working days from drawing approval. Production typically begins within 24–48 hours of drawing approval and advance receipt; where a new die is needed, the tooling lead time is confirmed at quotation.

What is the minimum order for die-cut parts?

Parts to a new drawing are quoted per job. Stock TO-package die-cut shapes start at 50 pieces and standard sheet grades at 10 sheets.

What should I send to get a die-cut part quoted?

A DXF or PDF drawing (or a physical sample), the material or grade, thickness, adhesive or non-adhesive backing, first-order and annual quantity, and your delivery state and GSTIN. See the RFQ checklist.

Can custom die-cut parts be returned?

Parts made to a buyer's drawing or to non-standard dimensions are not returnable unless there is a manufacturing defect against the approved drawing.

Request a quote

Send a DXF or PDF drawing, or a sample, with the material, thickness and quantity. The quote covers the die (once) and the piece rate.