Description
Precision Gap Control for Weld Fit-Up
Aquasol SoluShim water-soluble alignment sticks create controlled, repeatable spacing between plates, pipe and flanges during weld fit-up. Select a uniform thickness instead of relying on improvised metal filler rods, then remove the spacer with water after welding.
Use SoluShim where a clean, consistent root gap helps the team align components, tack efficiently and prepare for a sound weld. For work governed by AWS or API procedures, confirm the required gap and fit-up method for the specific job.
Why Use Water-Soluble Alignment Sticks?
- Repeatable spacing: choose a known thickness for more consistent pipe and seam fit-up.
- Cleaner weld preparation: avoids using temporary metal rods that may require cutting or grinding for removal.
- Flexible application: sticks may be bent to a 90-degree angle when the fit-up calls for it.
- Water-removable material: after welding, moisture helps the spacer release without leaving a metal insert in the joint.
- Quote-only support: request help selecting thickness, length and quantity for USA or Canada delivery.
Standard Sizes and Order Codes
| Item No. | Thickness | Size | Packaging | Case Pack |
|---|---|---|---|---|
| SS-2-38-132 | 1/32 in. / 0.8 mm | 3/8 x 2 in. / 9 x 50.5 mm | 100 pieces/polybag | 1,000 pieces |
| SS-2-38-16 | 1/16 in. / 1.6 mm | 3/8 x 2 in. / 9 x 50.5 mm | 100 pieces/polybag | 1,000 pieces |
| SS-2-38-332 | 3/32 in. / 2.4 mm | 3/8 x 2 in. / 9 x 50.5 mm | 100 pieces/polybag | 1,000 pieces |
| SS-2-38-18 | 1/8 in. / 3.2 mm | 3/8 x 2 in. / 9 x 50.5 mm | 100 pieces/polybag | 1,000 pieces |
| SS-4-38-132 | 1/32 in. / 0.8 mm | 3/8 x 4 in. / 9 x 101 mm | 50 pieces/polybag | 1,000 pieces |
| SS-4-38-16 | 1/16 in. / 1.6 mm | 3/8 x 4 in. / 9 x 101 mm | 50 pieces/polybag | 1,000 pieces |
| SS-4-38-332 | 3/32 in. / 2.4 mm | 3/8 x 4 in. / 9 x 101 mm | 50 pieces/polybag | 1,000 pieces |
| SS-4-38-18 | 1/8 in. / 3.2 mm | 3/8 x 4 in. / 9 x 101 mm | 50 pieces/polybag | 1,000 pieces |
Custom thicknesses and sizes are available on request. Provide the target gap, base material, component geometry and required quantity so the correct option can be quoted.
Selection Guidance: 2 in. vs. 4 in. and Thickness Choice
- Choose thickness first: match the stick to the root-gap specification and fit-up procedure rather than estimating with filler rod.
- Choose 2 in. sticks when a compact spacer is sufficient for the seam or access is limited.
- Choose 4 in. sticks when a longer contact area improves stability while positioning larger components.
- For pipe-to-pipe work, the sticks can be formed to a 90-degree angle where the application benefits from that shape.
Simple Installation and Removal
- Position sticks evenly along the joint to establish the intended gap.
- Align the components, then tack-weld between the sticks. Avoid directly charring the spacer during tack-welding.
- Complete the welding procedure.
- Apply water after the joint has cooled as appropriate. After roughly 10 seconds of moisture exposure, pull the softened sticks out or continue applying water to dissolve them.
Frequently Asked Questions
Which SoluShim thickness should I use?
Select the thickness that matches the required root gap and welding procedure. If the joint specification is unclear, request a quote with the gap, material and component details for help choosing an option.
How are SoluShim sticks removed after welding?
Moisten the sticks with water or aqueous steam, then remove the softened material or continue rinsing until it dissolves. They are not intended to dissolve in oil or fuel.
Can SoluShim alignment sticks be bent?
Yes. They can be formed to a 90-degree angle for applications such as pipe-to-pipe fit-up when that configuration is useful.
Are custom sizes available?
Yes. Request a quote with the needed thickness, length, width, quantity and application details.






