Designed for use in structural silicone glazing (SSG) applications, the black sidewall of the Technoform SP25 spacer reduces the chance of steel visibility where there is not full coverage of the sidewall by primary polyisobutylene (PIB) sealant. The new black sidewall spacer enhances aesthetics, allowing fabricators to ensure consistency of color at the edge, while achieving optimal thermal performance and durability. SP25’s spacer solution maintains the same high performance and durability as other Technoform PHSS solutions.