Graco Throat Seal Liquid (TSL)

SKU: GRA / 206994
GTIN / Barcode: 633955309692
Regular price £13.20 Inc VAT
Sale price £13.20 Inc VAT Regular price
£11.00 Exc VAT
Graco Throat Seal Liquid (TSL) is wet-cup fluid for Graco airless pumps. Added to the throat area, it protects the rod and packings, reducing wear, leaks and downtime by stopping paint and debris drying on the piston. Use a few drops at the start of each job and after cleaning. 206994 (250ml) / 206995 (1L). Read More

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Product Features


Protects your Graco pump from daily wear: Graco Throat Seal Liquid (TSL) helps protect the displacement rod and pump packings in your Graco airless sprayer, reducing wear and helping to prevent costly leaks, breakdowns and site downtime.


Simple, low-cost maintenance for trade decorators: Just a few drops of Graco Throat Seal Liquid at the start of each job and after cleaning can help extend pump life, support consistent spraying performance and keep your sprayer ready for the next job.


Stops paint drying in the wet cup area: This Graco TSL wet cup fluid is designed to stop paint, dust and debris drying around the throat area, helping your airless sprayer pump run smoother and making routine maintenance quicker and easier.

Brand Graco
Type Spray Accessories
Suitable For Specifically formulated to prevent paint and coatings from drying onto the displacement rod and packings of an airless paint sprayer
Key Features Reduces wear and tear on critical components, minimizes the risk of clogs or malfunctions, and helps maintain consistent spray quality
Weight 0.26 kg
SKU GRA / 206994
GTIN / Barcode 633955309692

Product Description

Graco Throat Seal Liquid (TSL)

Graco Throat Seal Liquid (TSL) 206994 250ml / 206995 1lt is the essential wet-cup fluid for maintaining Graco airless sprayer pumps and keeping you spraying reliably on site. Added to the wet cup/throat area, TSL protects the displacement rod and pump packings, reducing wear and helping prevent leaks and downtime. Unlike standard lubricants, this mild acid-based formula helps stop paint, dust and debris drying on the piston and packings, keeping the pump running smoother for longer. Simply add a few drops at the start of each job and after cleaning.

Key benefits:

  • Extends the life of pump packings and displacement rod.
  • Helps prevent paint drying in the throat/wet cup area.
  • Supports smoother, more consistent pump performance.
  • Quick, low-cost maintenance step for trade decorators.
  • Suitable for regular upkeep of Graco airless sprayers.

Choose part number 206994 250ml or 206995 1lt to match your sprayer/maintenance kit requirements.

Frequently Asked Questions

What is Graco TSL used for?
TSL is a wet-cup/throat seal liquid used in the wet cup to help protect the displacement rod and pump packings and keep your airless sprayer running smoothly.
Where do I put TSL on my airless sprayer?
Add a few drops into the wet cup/throat area (around the displacement rod) before spraying and again after cleaning down.
How does TSL differ from standard lubricants?
TSL is a mild acid-based formula designed to help stop paint, dust and debris drying on the piston and packings, not just “oil” the parts.
What benefits will I notice on site?
Regular use can help reduce wear, prevent leaks, improve pump consistency and minimise downtime caused by premature packing or rod wear.
Which size should I choose: 206994 or 206995?
206994 is 250ml (ideal for van stock and routine maintenance). 206995 is 1L (better value for frequent users or workshop servicing).

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