Tflex SF4 Thermal Gap Fillers

Laird Tflex SF4 Thermal Gap Fillers are silicon-free and offer a 0.5mm to 4mm thickness range with 4.0W/mK thermal conductivity. These gap fillers offer excellent deflection properties, minimizing pressure on components during deflection. A minimal amount of pressure is required to reach the lowest possible thermal resistance. Laird Tflex SF4 Thermal Gap Fillers are designed for datacom systems, automotive electronics, optical modules, and cameras.

Results: 30
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Description Datasheet Availability Pricing (CRC) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Product
Type
Package / Case
Material
Thermal Conductivity
Color
Minimum Operating Temperature
Maximum Operating Temperature
Length
Width
Thickness
Tensile Strength
Flammability Rating
Series
Packaging
Laird Thermal Interface Products Tflex SF4 1.00 457x457mm
Datasheet
8In Stock
₡132 010,84
₡125 031,40
₡121 101,89
₡120 149,44
View
Min.: 1
Mult.: 1
Gap Fillers / Gap Pads / Sheets Silicone-Free Non-standard Silicone 4 W/m-K Gray (Light Gray) - 65 C + 150 C 457 mm 457 mm 1 mm 30 psi UL 94 V-0 SF4 Bulk
Laird Thermal Interface Products Tflex SF4 1.50 229x229mm
Datasheet
27In Stock
₡39 857,24
₡36 885,38
₡35 068,96
₡34 636,97
Min.: 1
Mult.: 1
Gap Fillers / Gap Pads / Sheets Silicone-Free Non-standard Silicone 4 W/m-K Gray (Light Gray) - 65 C + 150 C 229 mm 229 mm 1.5 mm 30 psi UL 94 V-0 SF4 Bulk
Laird Thermal Interface Products Tflex SF4 2.00 229x229mm
Datasheet
35In Stock
₡49 756,49
₡45 535,52
₡40 872,15
Min.: 1
Mult.: 1
Gap Fillers / Gap Pads / Sheets Silicone-Free Non-standard Silicone 4 W/m-K Gray (Light Gray) - 65 C + 150 C 229 mm 229 mm 2 mm 30 psi UL 94 V-0 SF4 Bulk
Laird Thermal Interface Products Tflex SF4 2.50 229x229mm
Datasheet
14In Stock
20Expected 10/19/2026
₡59 863,93
₡56 517,34
₡53 727,64
₡51 812,33
Min.: 1
Mult.: 1
Gap Fillers / Gap Pads / Sheets Silicone-Free Non-standard Silicone 4 W/m-K Gray (Light Gray) - 65 C + 150 C 229 mm 229 mm 2.5 mm 30 psi UL 94 V-0 SF4 Bulk
Laird Thermal Interface Products Tflex SF4 3.00 229x229mm
Datasheet
13In Stock
₡69 929,73
₡64 339,93
₡63 059,59
₡60 259,48
Min.: 1
Mult.: 1
Gap Fillers / Gap Pads / Sheets Silicone-Free Non-standard Silicone 4 W/m-K Gray (Light Gray) - 65 C + 150 C 229 mm 229 mm 3 mm 30 psi UL 94 V-0 SF4 Bulk
Laird Thermal Interface Products Tflex SF4 3.50 229x229mm
Datasheet
15In Stock
₡80 391,09
₡74 790,88
₡72 396,74
Quote
Min.: 1
Mult.: 1
Gap Fillers / Gap Pads / Sheets Silicone-Free Non-standard Silicone 4 W/m-K Gray (Light Gray) - 65 C + 150 C 229 mm 229 mm 3.5 mm 30 psi UL 94 V-0 SF4 Bulk
Laird Thermal Interface Products Tflex SF4 4.00 229x229mm
Datasheet
23In Stock
₡90 248,70
₡83 878,20
₡81 759,91
Quote
Min.: 1
Mult.: 1
Gap Fillers / Gap Pads / Sheets Silicone-Free Non-standard Silicone 4 W/m-K Gray (Light Gray) - 65 C + 150 C 229 mm 229 mm 4 mm 30 psi UL 94 V-0 SF4 Bulk
Laird Thermal Interface Products Tflex SF4 0.50 229x229mm
Datasheet
25In Stock
₡21 859,55
₡20 521,95
₡19 340,49
₡18 689,91
Min.: 1
Mult.: 1
Gap Fillers / Gap Pads / Sheets Silicone-Free Non-standard Silicone 4 W/m-K Gray (Light Gray) - 65 C + 150 C 229 mm 229 mm 0.5 mm 30 psi UL 94 V-0 SF4 Bulk
Laird Thermal Interface Products Tflex SF4 1.00 229x229mm
Datasheet
2In Stock
20Expected 11/16/2026
₡29 864,30
₡28 464,25
₡26 543,74
₡25 867,13
Min.: 1
Mult.: 1
Gap Fillers / Gap Pads / Sheets Silicone-Free Non-standard Silicone 4 W/m-K Gray (Light Gray) - 65 C + 150 C 229 mm 229 mm 1 mm 30 psi UL 94 V-0 SF4 Bulk
Laird Thermal Interface Products Tflex SF4 0.50 457x457mm
Datasheet
Non-Stocked Lead-Time 9 Weeks
₡85 814,34
₡83 472,24
View
Min.: 10
Mult.: 1
Gap Fillers / Gap Pads / Sheets Silicone-Free Non-standard Silicone 4 W/m-K Gray (Light Gray) - 65 C + 150 C 457 mm 457 mm 0.5 mm 30 psi UL 94 V-0 SF4 Bulk
Laird Thermal Interface Products Tflex SF4 0.75 457x457mm
Datasheet
Non-Stocked Lead-Time 7 Weeks
₡103 223,90
₡99 591,05
View
Min.: 10
Mult.: 1
Gap Fillers / Gap Pads / Sheets Silicone-Free Non-standard Silicone 4 W/m-K Gray (Light Gray) - 65 C + 150 C 457 mm 457 mm 0.75 mm 30 psi UL 94 V-0 SF4 Bulk
Laird Thermal Interface Products Tflex SF4 1.25 457x457mm
Datasheet
Non-Stocked Lead-Time 7 Weeks
₡143 034,30
Min.: 10
Mult.: 1
Gap Fillers / Gap Pads / Sheets Silicone-Free Non-standard Silicone 4 W/m-K Gray (Light Gray) - 65 C + 150 C 457 mm 457 mm 1.25 mm 30 psi UL 94 V-0 SF4 Bulk
Laird Thermal Interface Products Tflex SF4 1.50 457x457mm
Datasheet
Non-Stocked Lead-Time 7 Weeks
₡165 003,15
Min.: 10
Mult.: 1
Gap Fillers / Gap Pads / Sheets Silicone-Free Non-standard Silicone 4 W/m-K Gray (Light Gray) - 65 C + 150 C 457 mm 457 mm 1.5 mm 30 psi UL 94 V-0 SF4 Bulk
Laird Thermal Interface Products Tflex SF4 1.75 457x457mm
Datasheet
Non-Stocked Lead-Time 7 Weeks
₡186 951,17
Min.: 10
Mult.: 1
Gap Fillers / Gap Pads / Sheets Silicone-Free Non-standard Silicone 4 W/m-K Gray (Light Gray) - 65 C + 150 C 457 mm 457 mm 1.75 mm 30 psi UL 94 V-0 SF4 Bulk
Laird Thermal Interface Products Tflex SF4 2.00 457x457mm
Datasheet
Non-Stocked Lead-Time 7 Weeks
₡208 909,61
Min.: 10
Mult.: 1
Gap Fillers / Gap Pads / Sheets Silicone-Free Non-standard Silicone 4 W/m-K Gray (Light Gray) - 65 C + 150 C 457 mm 457 mm 2 mm 30 psi UL 94 V-0 SF4 Bulk
Laird Thermal Interface Products Tflex SF4 2.25 457x457mm
Datasheet
Non-Stocked Lead-Time 7 Weeks
₡230 873,25
Min.: 10
Mult.: 1
Gap Fillers / Gap Pads / Sheets Silicone-Free Non-standard Silicone 4 W/m-K Gray (Light Gray) - 65 C + 150 C 457 mm 457 mm 2.25 mm 30 psi UL 94 V-0 SF4 Bulk
Laird Thermal Interface Products Tflex SF4 2.50 457x457mm
Datasheet
Non-Stocked Lead-Time 7 Weeks
₡252 800,45
Min.: 10
Mult.: 1
Gap Fillers / Gap Pads / Sheets Silicone-Free Non-standard Silicone 4 W/m-K Gray (Light Gray) - 65 C + 150 C 457 mm 457 mm 2.5 mm 30 psi UL 94 V-0 SF4 Bulk
Laird Thermal Interface Products Tflex SF4 2.75 457x457mm
Datasheet
Non-Stocked Lead-Time 7 Weeks
₡274 784,91
Min.: 10
Mult.: 1
Gap Fillers / Gap Pads / Sheets Silicone-Free Non-standard Silicone 4 W/m-K Gray (Light Gray) - 65 C + 150 C 457 mm 457 mm 2.75 mm 30 psi UL 94 V-0 SF4 Bulk
Laird Thermal Interface Products Tflex SF4 3.00 457x457mm
Datasheet
Non-Stocked Lead-Time 7 Weeks
₡296 717,32
Min.: 10
Mult.: 1
Gap Fillers / Gap Pads / Sheets Silicone-Free Non-standard Silicone 4 W/m-K Gray (Light Gray) - 65 C + 150 C 457 mm 457 mm 3 mm 30 psi UL 94 V-0 SF4 Bulk
Laird Thermal Interface Products Tflex SF4 3.25 457x457mm
Datasheet
Non-Stocked Lead-Time 7 Weeks
₡318 680,96
Min.: 10
Mult.: 1
Gap Fillers / Gap Pads / Sheets Silicone-Free Non-standard Silicone 4 W/m-K Gray (Light Gray) - 65 C + 150 C 457 mm 457 mm 3.25 mm 30 psi UL 94 V-0 SF4 Bulk
Laird Thermal Interface Products Tflex SF4 3.50 457x457mm
Datasheet
Non-Stocked Lead-Time 7 Weeks
₡340 655,01
Min.: 10
Mult.: 1
Gap Fillers / Gap Pads / Sheets Silicone-Free Non-standard Silicone 4 W/m-K Gray (Light Gray) - 65 C + 150 C 457 mm 457 mm 3.5 mm 30 psi UL 94 V-0 SF4 Bulk
Laird Thermal Interface Products Tflex SF4 3.75 457x457mm
Datasheet
Non-Stocked Lead-Time 7 Weeks
₡362 597,83
Min.: 10
Mult.: 1
Gap Fillers / Gap Pads / Sheets Silicone-Free Non-standard Silicone 4 W/m-K Gray (Light Gray) - 65 C + 150 C 457 mm 457 mm 3.75 mm 30 psi UL 94 V-0 SF4 Bulk
Laird Thermal Interface Products Tflex SF4 4.00 457x457mm
Datasheet
Non-Stocked Lead-Time 7 Weeks
₡384 717,61
Min.: 10
Mult.: 1
Gap Fillers / Gap Pads / Sheets Silicone-Free Non-standard Silicone 4 W/m-K Gray (Light Gray) - 65 C + 150 C 457 mm 457 mm 4 mm 30 psi UL 94 V-0 SF4 Bulk
Laird Thermal Interface Products Tflex SF4 0.75 229x229mm
Datasheet
Non-Stocked Lead-Time 7 Weeks
₡23 649,95
₡23 530,24
₡23 301,24
₡23 014,98
Quote
Min.: 20
Mult.: 1
Gap Fillers / Gap Pads / Sheets Silicone-Free Non-standard Silicone 4 W/m-K Gray (Light Gray) - 65 C + 150 C 229 mm 229 mm 0.75 mm 30 psi UL 94 V-0 SF4 Bulk
Laird Thermal Interface Products Tflex SF4 1.25 229x229mm
Datasheet
Non-Stocked Lead-Time 7 Weeks
₡32 763,30
₡32 461,43
₡32 138,74
₡31 836,87
View
Min.: 20
Mult.: 1
Gap Fillers / Gap Pads / Sheets Silicone-Free Non-standard Silicone 4 W/m-K Gray (Light Gray) - 65 C + 150 C 229 mm 229 mm 1.25 mm 30 psi UL 94 V-0 SF4 Bulk