Lanco Purple Jet-Dry 8oz: Cement for Bigger Plumbing Jobs
By Maintenance Depot Plumbing Team · Last reviewed
Quick answer
Lanco Purple Jet-Dry (8oz) is the larger size of the instant-adhesion violet cement for PVC, CPVC and ABS pressure and drinking water lines, suited to jobs with many joints.

Re-piping a bathroom or running a new supply line means a lot of joints. The Lanco Purple Jet-Dry™ cement (8oz) gives you more of the same fast-grabbing violet cement in a size that suits bigger jobs.
Specs at a glance
| Spec | Detail |
|---|---|
| Product | Solvent cement |
| Brand / name | Lanco Purple Jet-Dry |
| Size | 8oz |
| Colour | Violet |
| For | PVC, CPVC and ABS |
| Ideal for | Pressurized drinking water systems |
Why choose Jet-Dry?
- Instant adhesion: joints grab quickly so you can keep working
- Violet colour shows every joint has been cemented
- For PVC, CPVC and ABS
- Ideal for pressurized drinking water systems
Tips for multi-joint jobs
- Dry-fit everything first and mark alignment lines with a marker.
- Work one joint at a time. Fast-setting cement doesn't give you time to adjust.
- Keep the lid closed between joints so the cement doesn't thicken.
- Use the right dauber size for your pipe diameter.
- Wipe off excess to keep the job neat.
Curing before pressure testing
Fast adhesion doesn't mean full strength. Follow the label's cure times before pressurising, and allow longer in cool or damp conditions and for larger pipe sizes.
Storage
Store upright in a cool, shaded place with the lid tight. Thickened or jelly-like cement should be replaced.
Need prep? Use Lanco PVC Cleaner or a purple primer cleaner before cementing.
Frequently asked questions
How do I stop cement thickening during a job?
Close the lid between joints and keep the can out of the sun.
Should I dry-fit first?
Yes. Fast-setting cement leaves little time to adjust, so dry-fit and mark alignment.
When should I replace old cement?
If it has turned thick or jelly-like.