Graco TrueCoat 360 FlexLiner 42 oz Cup Kit - Bigger Jobs Made Easier

In this review the Graco TrueCoat 360 FlexLiner 42-Ounce Cup Kit is judged as a practical upgrade for anyone using the TrueCoat 360 sprayer who needs longer run time between refills. The bottom line: it upsizes the standard 32-ounce cup to a 42-ounce capacity so users can tackle larger rooms or longer trim runs with fewer interruptions. The kit's paint bag system also makes color changes and cleanup simpler, which is the single biggest reason a DIYer or tradesperson would add this kit to their toolkit.

Key Features

• Increased capacity: The 42-ounce cup support lets you spray longer without refilling, reducing downtime on bigger projects.
• Flex Liner paint bag: The disposable or reusable paint bag allows quick color changes and an easy cleanup option that saves time between coats.
• Versatile compatibility: Works with stain, latex and oil-based paints and primers, so it covers most interior and exterior jobs.
• Easy to use: Fill the bag, squeeze out air and spray - the design permits spraying in any direction, including upside down, for awkward angles.
• Included kick stand: The kit ships with a kick stand and cup support to keep the larger cup stable when set down on the job.

Who It's For

This kit is aimed at homeowners, serious DIYers and contractors already using the TrueCoat 360 who need fewer refills for medium to large painting or staining projects. It is particularly useful for multi-color interior work because the Flex Liner bags make switching colors cleaner and faster.

Those who should look elsewhere include buyers who rarely need more than a 32-ounce capacity or those who prefer bulk metal cups and full-time shop use where a fixed, heavy-duty system is preferred. If you do not own a TrueCoat 360 sprayer, the kit is not a standalone sprayer and therefore not suitable.

Pros & Cons

Pros

• Increases maximum capacity to 42 oz so users spend less time refilling on larger jobs.
• The Flex Liner paint bags are convenient for fast color changes and are easy to clean or discard.
• Compatible with stain, latex and oil-based paints and primers, offering broad material flexibility.
• Includes a kick stand and cup support to stabilize the larger cup during use.

Cons

• Some users report mixed durability on liners over time, so occasional bag issues are possible.
• The kit is an add-on for the TrueCoat 360 and not a full replacement sprayer, so it requires existing compatible equipment.

Specifications

Product	TrueCoat 360 Flex Liner Cup Kit
Capacity	42-Ounce cup
Included items	42-Ounce cup support, 42-Ounce Flex Liner paint bag and kick stand
Compatible materials	Stain, latex and oil-based paints and primers
Replacement part	Use with Graco 17F005 replacement bags
Designed for	TrueCoat 360 sprayer up-size from 32 oz

Our Verdict

The Graco TrueCoat 360 FlexLiner 42-Ounce Cup Kit is a smart, practical upgrade for anyone who already owns a TrueCoat 360 and routinely tackles medium to large paint or stain jobs. It reduces refills, simplifies color changes with disposable or reusable liners, and supports multiple paint types, making it good value for users who need that extra capacity and convenience.

Frequently Asked Questions

Can I use the kit with oil-based paints?
Yes. The kit supports stain, latex and oil-based paints and primers.

Does the kit include replacement bags?
The package includes one 42-ounce Flex Liner paint bag and is compatible with Graco 17F005 replacement bags for additional supply.

Will the larger cup fit my TrueCoat 360?
The kit is made to up-size the standard TrueCoat 360 32-ounce cup to 42 ounces, so it is compatible with that sprayer model.