Silicone vs PBT Keycaps: Which Attack Shark Set to Pick
By Attack Shark | Premium Gaming Keyboards, Mice, Headsets ... | Published: 2026-10-21
Category: Comparisons
Compare Attack Shark's SK01 silicone keycaps and SK04 forged carbon crystal keycaps to find the best set for your typing feel, durability, and budget.
Quick answer
Choose the Attack Shark SK01 silicone keycaps for a soft, springy, skin-like touch that resists wear and shine; choose the SK04 forged carbon crystal keycaps for a durable, high-tech patterned surface with increased fingertip contact and reduced pressure.
Material differences: silicone vs PBT
Silicone keycaps, like the SK01 set, use dual-material construction with a soft silicone top layer over a PC base. This gives a matte, smooth feel that doesn't get shiny over time. In contrast, PBT keycaps (the base material of many standard keycaps) are harder and more rigid, which can feel less comfortable during long typing sessions.
The SK04 set uses a composite PC with real carbon powder, creating a forged-carbon crystal texture. This is not PBT, but a high-strength PC blend that offers a distinct look and feel. The key difference is the tactile experience: silicone provides a cushioned, springy response, while the carbon-infused PC gives a more solid, textured feedback.
Layout compatibility and coverage
Both sets support a wide range of keyboard layouts, but the SK01 includes 113 keys covering 21-key to 108-key layouts, while the SK04 includes 119 keys covering 21-key to 104-key layouts plus TKL and 60% options. The SK04's extra keys may be useful for non-standard builds, but the SK01's layout support is more than sufficient for most users.
Both sets feature a Cherry profile with sculpted stepped rows. The SK04 specifically claims a 30% increase in fingertip contact area and reduced local pressure, which could benefit users who type for extended periods. The SK01's ergonomic design aims to follow the natural reach of your fingers without such quantified claims.
Trade-offs at a glance
- SK01 Silicone Keycaps: Soft, springy, skin-like feel with a matte finish that resists wear and shine. Supports 113-key layouts from 21-key to 108-key. Cherry profile ergonomics. Ideal if you prioritize comfort and a non-slip, matte surface over a high-tech look.
- SK04 Forged Carbon Crystal Keycaps: Durable composite PC with real carbon powder, forged-carbon crystal texture, and 119-key coverage (including TKL and 60%). Claims 30% more fingertip contact area and reduced pressure. Best if you want a premium, textured appearance and prefer a more solid, responsive typing feel.
- Price difference: SK01 is priced at USD 19.79 (catalog comparison USD 29.99); SK04 is USD 22.19 (catalog comparison USD 29.99). Both offer good value, but SK04 is slightly more expensive for the added material and key count. If budget is tight, SK01 delivers excellent comfort at a lower price point.
Product facts
- ATTACK SHARK SK01 113 Keys Silicone Keycap Set, Cherry Profile, ANSI, Pink: Dual-material comfort PC base with soft silicone and dual-shot molding delivers a smooth, springy, skin-like touch with a matte surface that resists wear and shine. This means the keycaps stay looking new longer and provide a comfortable typing experience without the glossy sheen that can attract fingerprints.
ATTACK SHARK SK01 113 Keys Silicone Keycap Set, Cherry Profile, ANSI, Pink - ATTACK SHARK SK04 119 Keys Forged Carbon Crystal Keycaps, ANSI/ISO: Composite PC with real carbon powder is crystal injection-moulded to create a detailed, high-tech pattern in every keycap. The unique forged-carbon texture not only looks distinctive but also offers a durable, non-slip surface that resists wear from heavy use.
ATTACK SHARK SK04 119 Keys Forged Carbon Crystal Keycaps, ANSI/ISO
Which set fits you?
Best for
- Gamers and typists who want a soft, cushioned typing experience with a matte finish that stays clean
- Users building custom keyboards who need broad layout support (21-key to 108-key) without extra keys
Not for
- Those who prefer a rigid, textured keycap with a high-tech aesthetic and are willing to pay a bit more
- Users who need TKL or 60% layout support out of the box
