Best Modeling Putty: Fill Seams and Gaps Like a Pro
Updated How we research
Tamiya Epoxy Sculpting Putty
Tamiya Epoxy Sculpting Putty, a two-part filler for bigger gaps, rebuilding shapes and sculpting small details.
Tamiya White Putty 32 gram TAM87095
Tamiya White Putty 32 gram TAM87095, a fine-grained white filler that suits light plastic and white-molded kits.
Modeling putty fills the seams, gaps, and sink marks that even good kits leave behind, giving scale modelers a smooth surface before primer. There are several families: solvent-based putties that bite into styrene, two-part epoxy putties for sculpting and big gaps, sprue-goo style mixes, and CA glue used with filler powder for fast, hard fills. Each behaves differently under a sanding stick. When choosing, consider shrinkage as the putty cures, how easily it sands and feathers into surrounding plastic, cure time, and whether it can be smoothed with solvent to reduce sanding. This guide covers putties for hairline seams, deep wing roots, and full-on sculpting work.
The short version
We compared 7 picks. Our scores range from 6.8 to 8.4 out of 10.
- Best overall:Tamiya Epoxy Sculpting Putty. Highest overall score in this guide at 8.4/10.
- Also great value:Tamiya White Putty 32 gram TAM87095. Value score of 8/10, overall 8.1/10.
- Solid build:Vallejo Plastic Putty 18 ml (0.6 fl.oz.) - White, Opaque, Consistent Finish. Build and materials score of 8/10, overall 8.1/10.
- Feature-rich:Deluxe Materials BD44 Perfect Plastic Putty, 40ml. Features score of 7/10, overall 8.1/10.
Scores are our editorial assessment, not customer ratings. How we score
- 1.Tamiya Epoxy Sculpting Putty8.4/10See on AmazonCheck price
- 2.Tamiya White Putty 32 gram TAM870958.1/10See on AmazonCheck price
- 3.Vallejo Plastic Putty 18 ml (0.6 fl.oz.) - White, Opaque, Consistent Finish8.1/10See on AmazonCheck price
- 4.Deluxe Materials BD44 Perfect Plastic Putty, 40ml8.1/10See on AmazonCheck price
- 5.Mr. Hobby P119 Mr. Dissolved Putty7.8/10See on AmazonCheck price
- 6.The Army Painter, Green Stuff, 2 Part Modelling Clay 20 cm for Sculpting | Mouldable Model Putty Modelling Compound for Miniatures, Easy-to-Knead Green Putty Epoxy Clay for Sculpting7.4/10See on AmazonCheck price
- 7.Testors Contour Putty, Modeling Putty, 5/8 Oz Tube6.8/10See on AmazonCheck price
#1Tamiya Epoxy Sculpting Putty, a two-part filler for bigger gaps, rebuilding shapes and sculpting small details.
Fit for the job 9/10 · Features and specs 8/10 · Build and materials 8/10 · Value 8/10
- + Epoxy cure means no shrinkage, even on larger gaps
- + Can be sculpted into missing parts or custom details
- + Smooths with water before curing for cleaner results
- - Mixing two parts adds a step compared with tube putty
- - Longer cure time delays sanding and painting
#2Tamiya White Putty 32 gram TAM87095, a fine-grained white filler that suits light plastic and white-molded kits.
Fit for the job 9/10 · Features and specs 7/10 · Build and materials 8/10 · Value 8/10
- + White color disappears under light paint and on white parts
- + Fine texture sands to a very smooth surface
- + 32 gram tube lasts through many seam filling jobs
- - Harder to see on white plastic when checking coverage
- - Shrinks on deep fills and may need reapplying
#3Vallejo Plastic Putty 18 ml, a white, opaque, water-based filler that gives a consistent finish on plastic seams.
Fit for the job 9/10 · Features and specs 7/10 · Build and materials 8/10 · Value 8/10
- + Water-based formula has low odor and cleans up with water
- + Can be smoothed with a damp brush instead of heavy sanding
- + Opaque white finish hides seams well under primer
- - Softer than solvent putty, so it can be removed if overworked
- - 18 ml bottle is small if you fill large gaps often
#4Deluxe Materials BD44 Perfect Plastic Putty 40ml, a water-based filler designed for fast, smooth seam filling.
Fit for the job 9/10 · Features and specs 7/10 · Build and materials 8/10 · Value 8/10
- + Excess wipes away with a damp cloth for tidy seam work
- + Water-based and low odor for indoor work spaces
- + 40ml tub is generous for regular filling tasks
- - Needs a sealed lid, since it dries out if left open
- - Not ideal for structural fills that must take stress
#5Mr. Hobby P119 Mr. Dissolved Putty, a thinned liquid putty for filling fine scratches and hairline seams.
Fit for the job 8/10 · Features and specs 7/10 · Build and materials 8/10 · Value 8/10
- + Thin consistency flows into hairline seams and scratches
- + Brush-on application is precise on delicate areas
- + Mr. Hobby formula blends smoothly with plastic surfaces
- - Too thin for filling larger gaps in a single pass
- - Solvent smell requires good ventilation while working
#6The Army Painter Green Stuff is a two-part epoxy putty that you mix from yellow and blue strands, aimed at filling seams and gaps and at sculpting small details on models and miniatures.
Fit for the job 8/10 · Features and specs 7/10 · Build and materials 7/10 · Value 7/10
- + Two-part epoxy putty: mix yellow and blue in equal amounts, then shape it before it cures, which suits filling gaps and seams.
- + The listing says it can be sanded or shaved once cured, so seam repairs can be cleaned up to a smooth finish.
- + Also works for sculpting small parts and conversions, so one strip covers both gap filling and custom detail work.
- - It is an epoxy sculpting putty, not a ready-to-use tube filler like Tamiya Basic Putty, so you must mix it each time.
- - A 20 cm strip is a modest amount, and the listing gives no cure time or working time to plan around.
#7Testors Contour Putty in a 5/8 Oz tube, a widely available modeling putty for filling seams on plastic kits.
Fit for the job 7/10 · Features and specs 6/10 · Build and materials 6/10 · Value 8/10
- + Easy to find at many hobby and craft stores
- + Tube format makes quick seam fills convenient
- + Budget friendly for builders who fill seams occasionally
- - Can dry out in the tube if not capped tightly
- - Rougher texture than premium fillers after sanding
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.
- Mixing two parts adds a step compared with tube putty (Tamiya Epoxy Sculpting Putty)
- Harder to see on white plastic when checking coverage (Tamiya White Putty 32 gram TAM87095)
- Softer than solvent putty, so it can be removed if overworked (Vallejo Plastic Putty 18 ml (0.6 fl.oz.) -...)
- Needs a sealed lid, since it dries out if left open (Deluxe Materials BD44 Perfect Plastic Putty,...)
- Too thin for filling larger gaps in a single pass (Mr. Hobby P119 Mr. Dissolved Putty)
- It is an epoxy sculpting putty, not a ready-to-use tube filler like Tamiya Basic Putty, so you must mix it each time. (The Army Painter, Green Stuff, 2 Part...)
Frequently asked questions
›What is the best choice among modeling putty: fill seams and gaps like a pro?
Tamiya Epoxy Sculpting Putty is our top overall pick. Tamiya Epoxy Sculpting Putty, a two-part filler for bigger gaps, rebuilding shapes and sculpting small details. It earns our score of 8.4/10, based on fit for the job, features, build and value.
›What is a good budget option?
Tamiya White Putty 32 gram TAM87095 is the strongest low-cost pick in this guide. Tamiya White Putty 32 gram TAM87095, a fine-grained white filler that suits light plastic and white-molded kits.
›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.
Popular right now
- Best Magnifiers for Scale ModelingBuying guide
- Best Airbrush Cleaners for ModelersBuying guide
- Best Hobby Lamps for Model BuildingBuying guide
- Best Brush Sets for Model Painting: Detail Brushes That Keep Their PointBuying guide
- Restoring Old Model KitsArticle
- Best Model Ship Kits: Top Picks for Scale ModelersBuying guide
Based on the last 28 days of search and visitor data.