This stuff is amazing which is also what we hear from the customer feedbacks as well. Silca has cracked the code with this new fiber-foam sealant, which seals  7.5mm holes for up to 6 months. 

The Specs: 

• Effective down to 10F/ -12C
• Must be poured into tire during install
• Not injector compatible (It seals holes bigger than
your valve)
• Use Replenisher every 90-120 days for best
performance
• 6, 9, and 12mm recycled carbon fibers are dispersed evenly by a foaming latex to create ultra strong seals
• Made in the USA

This stuff is amazing which is also what we hear from the customer feedbacks as well. Silca has cracked the code with this new fiber-foam sealant, which seals  7.5mm holes for up to 6 months. 

The Specs: 

• Effective down to 10F/ -12C
• Must be poured into tire during install
• Not injector compatible (It seals holes bigger than
your valve)
• Use Replenisher every 90-120 days for best
performance
• 6, 9, and 12mm recycled carbon fibers are dispersed evenly by a foaming latex to create ultra strong seals
• Made in the USA