Best Plastic Cement for Model Kits: Solvent Glues That Weld Styrene
Updated How we research
Tamiya 87038 Extra Thin Cement Glue Fine Tip 40ml
Tamiya 87038 Extra Thin Cement with fine tip brush, 40ml, a watery glue that wicks into joints by capillary action.
Plastruct Plastic Weld with Applicator 2oz Bottle
Plastruct Plastic Weld with applicator in a 2oz bottle, a strong solvent cement for styrene, ABS and scratch-building.
Plastic cement does not stick parts together so much as weld them: the solvent melts both styrene surfaces, and they cure into a single piece of plastic stronger than the surrounding sprue. That chemistry is why seam lines can vanish under sanding and why the right cement matters more than clamping force. But formulas differ widely. Extra-thin types wick into a held joint by capillary action, thicker tube cements give working time and fill small gaps, and each has a place on the bench. Brush quality, drying speed, and fume strength vary just as much. This guide compares the leading solvent cements, explains where each type earns its spot, and flags the ones worth keeping within arm's reach.
The short version
We compared 7 picks. Our scores range from 6.8 to 9.1 out of 10.
- Best overall:Tamiya 87038 Extra Thin Cement Glue Fine Tip 40ml. Highest overall score in this guide at 9.1/10.
- Also great value:Plastruct Plastic Weld with Applicator 2oz Bottle. Value score of 8/10, overall 8.4/10.
- Solid build:GSI Creos MC129 Mr. Cement S, Mr. Hobby. Build and materials score of 8/10, overall 8.1/10.
- Feature-rich:Tamiya TAM87012 Plastic Cement 20ml. Features score of 7/10, overall 7.8/10.
Scores are our editorial assessment, not customer ratings. How we score
- 1.Tamiya 87038 Extra Thin Cement Glue Fine Tip 40ml9.1/10See on AmazonCheck price
- 2.Plastruct Plastic Weld with Applicator 2oz Bottle8.4/10See on AmazonCheck price
- 3.GSI Creos MC129 Mr. Cement S, Mr. Hobby8.1/10See on AmazonCheck price
- 4.Tamiya TAM87012 Plastic Cement 20ml7.8/10See on AmazonCheck price
- 5.Mr. Hobby MC124 Cement For Plastic Model 40ml7.8/10See on AmazonCheck price
- 6.Testors Plastic Cement Liquid 1 Oz7.3/10See on AmazonCheck price
- 7.Testors Plastic Cement (5/8 oz Tube)6.8/10See on AmazonCheck price
| # | Product | Our score | Price | |
|---|---|---|---|---|
| 1 | Tamiya 87038 Extra Thin Cement Glue Fine Tip 40ml | 9.1/10 | See on Amazon | Check price |
| 2 | Plastruct Plastic Weld with Applicator 2oz Bottle | 8.4/10 | See on Amazon | Check price |
| 3 | GSI Creos MC129 Mr. Cement S, Mr. Hobby | 8.1/10 | See on Amazon | Check price |
| 4 | Tamiya TAM87012 Plastic Cement 20ml | 7.8/10 | See on Amazon | Check price |
| 5 | Mr. Hobby MC124 Cement For Plastic Model 40ml | 7.8/10 | See on Amazon | Check price |
| 6 | Testors Plastic Cement Liquid 1 Oz | 7.3/10 | See on Amazon | Check price |
| 7 | Testors Plastic Cement (5/8 oz Tube) | 6.8/10 | See on Amazon | Check price |
#1Tamiya 87038 Extra Thin Cement with fine tip brush, 40ml, a watery glue that wicks into joints by capillary action.
Fit for the job 10/10 · Features and specs 8/10 · Build and materials 9/10 · Value 9/10
- + Extra thin formula flows into seams for nearly invisible bonds
- + Brush in the cap applies glue precisely along joints
- + 40ml bottle lasts through many kit builds
- - Evaporates quickly if the cap is left off
- - Too thin for filling gaps between poorly fitting parts
#2Plastruct Plastic Weld with applicator in a 2oz bottle, a strong solvent cement for styrene, ABS and scratch-building.
Fit for the job 9/10 · Features and specs 8/10 · Build and materials 8/10 · Value 8/10
- + Powerful solvent welds styrene and ABS for tough joints
- + Applicator helps place glue accurately on small parts
- + Popular with scratch-builders and model railroaders
- - Strong fumes require good ventilation during use
- - Aggressive solvent can mar surfaces if spilled
#3GSI Creos MC129 Mr. Cement S from Mr. Hobby, a fast-evaporating thin cement for precise seam bonding.
Fit for the job 9/10 · Features and specs 7/10 · Build and materials 8/10 · Value 8/10
- + Thin, fast-setting formula bonds seams quickly and neatly
- + Japanese Mr. Hobby quality favored by many scale modelers
- + Minimal residue keeps joints tidy for painting
- - Fast evaporation leaves little time to reposition parts
- - Can be harder to find in general US craft stores
#4Tamiya TAM87012 Plastic Cement 20ml, a thicker plastic glue for larger joints and parts that need time to position.
Fit for the job 8/10 · Features and specs 7/10 · Build and materials 8/10 · Value 8/10
- + Thicker body gives more working time to align parts
- + Good for structural joints like wings and hull halves
- + Brush cap spreads glue evenly across contact surfaces
- - Can ooze from seams if too much is applied
- - 20ml bottle is smaller than the extra thin version
#5Mr. Hobby MC124 Cement for Plastic Model 40ml, a standard-viscosity Mr. Hobby glue for general kit assembly.
Fit for the job 8/10 · Features and specs 7/10 · Build and materials 8/10 · Value 8/10
- + Standard viscosity works for both large and medium joints
- + 40ml bottle offers good value for regular builders
- + Brush cap spreads glue evenly across joining faces
- - Thicker than Mr. Cement S for capillary seam work
- - Can soften plastic detail if used too heavily
#6Testors Plastic Cement Liquid 1 Oz, a classic American liquid glue for bonding styrene model parts.
Fit for the job 8/10 · Features and specs 6/10 · Build and materials 7/10 · Value 8/10
- + Widely stocked in US hobby and craft stores
- + Liquid formula welds styrene for a strong, clean joint
- + Affordable choice for casual and younger builders
- - Applicator may be less precise than fine brush caps
- - Solvent odor means you should work with good airflow
#7Testors Plastic Cement in a 5/8 oz tube, a thick tube glue that has been a starter staple for decades.
Fit for the job 7/10 · Features and specs 6/10 · Build and materials 6/10 · Value 8/10
- + Thick glue fills small gaps while bonding parts
- + Tube format is familiar and easy for young beginners
- + Very affordable and widely available
- - Messy strings and blobs are easy to leave on visible parts
- - Slow drying compared with thin liquid cements
Before you buy: trade-offs we flagged
No pick is perfect. These are the main compromises we noted for the top products in this guide, so you can check they will not matter for you.
- Evaporates quickly if the cap is left off (Tamiya 87038 Extra Thin Cement Glue Fine Tip...)
- Strong fumes require good ventilation during use (Plastruct Plastic Weld with Applicator 2oz...)
- Fast evaporation leaves little time to reposition parts (GSI Creos MC129 Mr. Cement S, Mr. Hobby)
- Can ooze from seams if too much is applied (Tamiya TAM87012 Plastic Cement 20ml)
- Thicker than Mr. Cement S for capillary seam work (Mr. Hobby MC124 Cement For Plastic Model 40ml)
- Applicator may be less precise than fine brush caps (Testors Plastic Cement Liquid 1 Oz)
Frequently asked questions
›What is the best choice among plastic cement for model kits: solvent glues that weld styrene?
Tamiya 87038 Extra Thin Cement Glue Fine Tip 40ml is our top overall pick. Tamiya 87038 Extra Thin Cement with fine tip brush, 40ml, a watery glue that wicks into joints by capillary action. It earns our score of 9.1/10, based on fit for the job, features, build and value.
›What is a good budget option?
Plastruct Plastic Weld with Applicator 2oz Bottle is the strongest low-cost pick in this guide. Plastruct Plastic Weld with applicator in a 2oz bottle, a strong solvent cement for styrene, ABS and scratch-building.
›How much should I expect to spend?
Picks in this guide span See on Amazon price bands (roughly: $ = under $30, $$ = $30 to $100, $$$ = over $100). We never display exact prices because they change constantly, so the buttons above always show Amazon's current price.
›How were these products chosen?
We shortlist products that fit the job this guide solves and compare their published specifications, such as size, capacity, materials and what is included. Each pick gets an editorial score out of 10 for fit, features, build and value, and we write the pros and cons from those details. Our score is not an Amazon customer rating. We earn a commission if you buy through our links, which never affects the ranking.
Model Build Lab independently selects every product; we may earn a commission from links above.
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