Thermal Solutions

Thermal Interface Materials for LED, SMPS, EV & Power Electronics

High conductivity silicone thermal pads, gap filler pads, reinforced sheets, TO-package insulation pads, and ceramic thermal pads for OEM heat dissipation. Custom die-cut, adhesive and non-adhesive options, bulk supply from Bengaluru.

1.0–24 W/mKThermal conductivity range
0.3–3 mmPopular thickness options
ISO 9001:2015OEM-focused manufacturing
Fiberglass Reinforced Thermal Pads Fiberglass Reinforced Thermal Pads
Thermal Softpad Thermal Softpad

Shop Thermal Interface Products

Configure your pad — choose model, conductivity, thickness and quantity. Bulk price is shown instantly; larger volumes go to a quick RFQ.

More Thermal Solutions

Silicone pads, gap fillers and PU foam — pick a product, choose your model, size and thickness, then request a quote. Custom die-cut available on every item.

Shop from our other products

Beyond thermal — explore our electrical insulation papers and FRP sheet ranges.

Thermal Product Enquiry

Thermal interface materials we manufacture

Perfect Insulations manufactures and die-cuts thermal pads in Bengaluru, and has done since 1995 under an ISO 9001:2015 quality system. The range covers silicone thermal pads from 1.0 to 6.0 W/m·K, fibreglass-reinforced silicone pads cut to TO-220, TO-247, TO-264 and TO-3P package outlines, TO-package insulators, a gap filler pad and an alumina ceramic pad. Every grade is thermally conductive and electrically insulating, and every grade is supplied as sheet or die-cut to your drawing.

Figures below come from the same catalogue as the individual product pages. Each grade code links to its full specification.

Pads by grade

GradeProductConductivityDielectricThicknessPrice
CP100CP100 Silicone Thermal Pad1.0 W/m·K4.0 kV/mm0.5 / 1 / 2 / 3 mm₹85–₹410 + GST
TO-220Thermal Insulation Pad for TO-2201.0 W/m·K5.0 kV/mm0.3 / 0.5 mmOn enquiry
TO-3PSilicone Thermal Insulation Pad for TO-3P1.0 W/m·K5.0 kV/mm0.3 / 0.5 mmOn enquiry
CP150CP150 Silicone Thermal Pad for SMPS Cooling1.5 W/m·K4.5 kV/mm0.5 / 1 / 2 / 3 mm₹110–₹510 + GST
CP200CP200 Silicone Thermal Pad for LED Driver Heat Dissipation2.0 W/m·K5.0 kV/mm0.5 / 1 / 2 / 3 mm₹135–₹615 + GST
EXCH-ELExchanger Element Thermally Conductive Pad2.0 W/m·K4.0 kV/mm0.5 / 1 / 2 mmOn enquiry
HTP-PLATEHeat Transfer Plates Thermal Pad2.0 W/m·K4.0 kV/mm0.5 / 1 / 2 mmOn enquiry
LED-DRVLED Driver Silicone Thermal Insulation Pad2.0 W/m·K5.0 kV/mm0.5 / 1 / 2 mmOn enquiry
CP300CP300 Silicone Thermal Pad3.0 W/m·K6.0 kV/mm1 / 2 / 3 mm₹180–₹840 + GST
GREY-PADGrey Thermal Pad3.0 W/m·K4.5 kV/mm1 / 2 / 3 mmOn enquiry
SIL-PINKHigh Thermal Conductivity SIL PAD3.0 W/m·K5.0 kV/mm0.3 / 0.5 / 1 mmOn enquiry
CP600CP600 High Conductivity Thermal Pad for IGBT & MOSFET Cooling6.0 W/m·K6.0 kV/mm1 / 2 / 3 mm₹320–₹1,530 + GST
CER-AL2O3Ceramic Thermal Pad24.0 W/m·K12.0 kV/mm0.5 / 1 mmOn enquiry

Fibreglass-reinforced TO-package shapes

Held as stock die-cuts, each available in five material grades: SC 30 (1.0 W/m·K, 0.30 mm), SC 45 (1.0 W/m·K, 0.45 mm), PCV 160S (1.6 W/m·K, 0.23 mm), TC-20TAG-2 (2.0 W/m·K, 0.20 mm), PCV 200S (2.0 W/m·K, 0.25 mm). Minimum order 50 pieces.

PackageSizeMounting holeSpecificationPrice
TO-22013 × 19 mm3.5 mmView product₹2–₹7 + GST
TO-22015 × 20 mm3 mmView product₹2–₹8 + GST
TO-24717 × 22 mm3 mmView product₹2–₹10 + GST
TO-24717 × 22 mm3.5 mmView product₹2–₹10 + GST
TO-24717 × 27 mm—View product₹3–₹12 + GST
TO-24720 × 26 mm3 mmView product₹2–₹14 + GST
TO-24720 × 26 mm3.5 mmView product₹2–₹14 + GST
TO-26422 × 28 mm—View product₹4–₹17 + GST
TO-3P19 × 24 mm—View product₹3–₹12 + GST
TO-3P25 × 22 mm—View product₹4–₹15 + GST

Frequently asked

What is a thermal pad?

A thermal pad is a thermally conductive, electrically insulating layer fitted between a heat-generating component and its heatsink or chassis. It fills the air gap in that joint, so heat is conducted across it while the component stays electrically isolated.

What thermal conductivity range do you supply?

Silicone thermal pads from 1.0 to 6.0 W/m·K, and an alumina ceramic pad at 24 W/m·K. The Thermal Softpad sheet is offered in 14 grades from 1 to 12 W/m·K and is priced on enquiry.

Are your thermal pads electrically insulating?

Yes. Each grade carries a rated dielectric strength: 4.0 to 6.0 kV/mm across the silicone range, and 12 kV/mm for the ceramic pad.

What thicknesses are available?

Stock thicknesses run from 0.3 mm to 3 mm depending on the grade, as listed in the table above. Fibreglass-reinforced TO-package pads are 0.20 to 0.45 mm. Every grade can also be die-cut to your drawing.

Can I order online?

Yes, for fibreglass-reinforced TO-package pads within the quantity band shown in the configurator above, paid by UPI at checkout. Other grades, larger quantities and custom parts are supplied against a quotation.

Do prices include GST?

No. Prices are indicative per-unit rates excluding 18% GST, which is billed as CGST+SGST within Karnataka and IGST for other states.

Full product catalogue

Every thermal grade we make — conductivity, thickness, sizes and indicative pricing, on one page each.

CP100 Silicone Thermal PadCP300 Silicone Thermal PadCP600 High Conductivity PadTO-220 Fibreglass Pad 13×19TO-247 Fibreglass Pad 20×26Grey Gap Filler Pad
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