4 x 1U and 1 x 1.25U "Tab" Silicone Keycap Molds

A two-piece silicone mould set for casting your own custom keycaps. Includes four 1U (standard single-key size) and one 1.25U (Tab-key size) cavities, compatible with Cherry MX-style key switches.

UV-curable resin is recommended for the best results — it cures quickly and cleanly with a UV lamp, avoiding the temperature and humidity sensitivity of two-part resin. Once cured, the keycaps pop out of the flexible silicone mould and fit directly onto any Cherry MX-compatible switch.

Key Features

• 5 Keycap Cavities – 4× 1U (R2 profile) and 1× 1.25U (Tab key size)
• Cherry MX Compatible – Cast keycaps fit standard MX-style stems
• Two-Piece Mould – Top and bottom pieces for clean, detailed castings
• Flexible Silicone – Easy demoulding of cured keycaps

Ideal For

• Custom mechanical keyboard builds
• Artisan keycap crafting
• Resin casting and UV-cure projects

Package Contents

• 1× Two-piece silicone keycap mould (4× 1U + 1× 1.25U cavities)