Blush Linear Switch | Shipping to vendors

Materials

Top housing - Polycarbonate
Bottom housing - Nylon
Stem - Long POM linear stem
Spring - 58g dual-stage stainless steel spring
Factory lube - None
Travel distance - 3.3mm

Sick of thin, cheap sounding and feeling switches, I wanted to provide something different to a lot of the newer linears on the market, specifically those manufactured by Durock/JWK. With this in mind, I had two primary goals with this switch - to provide full and even housing collisions while maintaining that level of smoothness that enthusiasts have come to expect in recent years. After multiple rounds of prototyping, the Blush linear switch is ready to be run in its final form.

For the top housing, while prototypes were made with both polycarbonate (PC) and nylon plastic, polycarbonate was chosen over nylon to provide a better overall typing feel. Nylon leads to the switch feeling ‘flat’ and sounding dull and introduces slightly more scratch to the keystroke - similar to that of stock MX Blacks. Polycarbonate was determined to be the better choice because of the higher level of smoothness it provides, as well as the poppier sound signature.
Dual-stage springs are generally longer than normal springs, which tend to be around 15mm in length. The springs used in the Blush linear switch are 20mm in length, which is significantly longer than standard 15mm springs. Because of the extra length, the spring is pre-compressed in the switch, making it heavier at the start of the keystroke, which also leads to a snappier return, providing more feedback when typing. Not only does this deliver a more satisfying typing experience, but it also helps towards combating the slight thinness in feel that polycarbonate top housings can introduce - by topping out with greater force.
The stem is made of POM and has a pole that’s longer than normal linear switches. The extra length improves the sound of the switch and causes a sharper, hard-hitting bottom out. Just like the dual-stage spring, the longer stem also helps to increase typing feedback and provides a more satisfying and ‘full’ feeling.
Nylon is a great all-rounder material for bottom housings, which is why it’s seen in many switches. It has high wear resistance and is relatively hard, which is necessary to keep the switch working well even when abused during long gaming sessions.