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In August 2025, the global epoxy putty market was rocked by major manufacturing companies in the United States scaling back or stopping altogether the production of epoxy putty sticks. The industrial maintenance industry was hit first but now the ramifications have filtered through to the model making supply chain and are impacting one popular epoxy putty in particular – Green Stuff.
What has caused Green Stuff supply issues?
The driver of Green Stuff supply issues is tariffs. US manufacturers of epoxy putty sticks whose raw materials come from abroad now face increased production costs. The Department of Commerce imposed anti-dumping duties as high as 355 percent at one point on epoxy resins imported from China, India, South Korea and Thailand.
Epoxy putty stick manufacturers in the US are effectively being squeezed from both ends. Anti-dumping measures drive up the costs for importing raw components. At the same time, retaliatory tariffs make exporting finished products out of the country more expensive and challenging than ever.
As a result, some of the biggest, long-standing names in the epoxy putty stick market from the US are leaving it. Including PPG, who have shut their old Polymeric site and no longer manufacture Kneadatite or any of their other putty sticks.
SylCreate and Green Stuff
SylCreate’s parent company, Sylmasta LTD were the first company to introduce Green Stuff to the United Kingdom and European modelling market at Euro Millitaire in Folkestone during the 1990s.
It has been supplied by Sylmasta ever since, originally under the Sylmasta name and then through SylCreate after the business was split into separate brands for industrial maintenance products and model making, craft and restoration in 2020.
Crucially for the future of Green Stuff, Sylmasta HQ is home to the only epoxy putty stick plant in the United Kingdom. The plant already manufactures Geomfix Original for the modelling market; a softer, smoother, more-easily worked Milliput which sets extremely hard. SylCreate also supply Wesco Magic Sculp under our own brand.
Manufacturing a new Green Stuff
The investment in the latest epoxy putty stick manufacturing technology at Sylmasta HQ means we have the machinery capable of producing our own version of Green Stuff for sale to end-users and distributors worldwide, filling the void left by the departure of PPG from the market.
Making our own Green Stuff in-house is a project which has been under consideration for some time. The supply issues stemming from Green Stuff no longer being made have now made it a priority, and we can confirm development is underway on a new formulation compatible with our machinery.
The new product will be as close to the original as possible, although it will be impossible to replicate exactly. We will be moving away from the ribbon format for a number of reason; an important one being people frequently complain about cured bits down the middle of the strip where the two parts touch.
Instead, new Green Stuff will focus on the stick format. The intention is to provide one 50g stick of Part A and one 50g stick of Part B packed in a tube. This will also give users greater control over changing mix ratios.
Creating a new formulation for Green Stuff gives us a rare opportunity to tweak the properties of one of the world’s most popular modelling putties before it re-enters the supply chain.
If you have any feedback on what you currently like or do not like about Green Stuff, we would love to hear from you. It will help guide us in developing a product 100 percent tailor-made for the modelling community.
To get in contact with your feedback or discuss distributor opportunities for new SylCreate Green Stuff, please email sales@sylmasta.com or fill out the contact form below.
note the properties are reportedly not quite the same so if you're doing higher end sculpting this may be an issue, but for basic gap filling & conversion its probably not going to be an issue
parakuribo wrote: You guys in Europe are cheering, but what about us American hobbyists, who are running out of options?
Cheering? Sorry but are you mad? This is devastating for my workflow since I sculpt exclusively miniatures only in greenstuff for the past 20odd years.
parakuribo wrote: You guys in Europe are cheering, but what about us American hobbyists, who are running out of options?
Cheering? Sorry but are you mad? This is devastating for my workflow since I sculpt exclusively miniatures only in greenstuff for the past 20odd years.
The notice explained that you guys are stuck with alternatives. We don't even have any factory that can make it now....
This message was edited 1 time. Last update was at 2026/02/12 15:44:32
parakuribo wrote: You guys in Europe are cheering, but what about us American hobbyists, who are running out of options?
Cheering? Sorry but are you mad? This is devastating for my workflow since I sculpt exclusively miniatures only in greenstuff for the past 20odd years.
The notice explained that you guys are stuck with alternatives. We don't even have any factory that can make it now....
I did avoid to talk too much about the "alternatives" you speak off... but from experience I tried GSworld during covid GS shortages and like, mentioned in this thread, great for casual modellers but it was the worst GS I have ever worked with, not sure if it was a bad batch but not willing to go through lumps of half dried GS to double check that. Maybe their formula changed now but as it was it was not fit for my purposes.
The Jenolite is a total stranger, we are not sure if its repackaged like the vast majority of GS in the market or if its genuine new... the absurd high price seems to suggest repackaging but soon we will find out, in the next year, when the world wide GS stocks are depleted everywhere.
The only viable alternative is the investment of Sylmasta on a new formula, but that is still in the air, may take months if not years to actually do it.
This is not good news, no one is cheering,,, and yes you had GS factory for 50 years in the US. We are all in the same freaking sinking ship.
Honestly? I've scaled back my use of green stuff long ago. When it comes to general crack filling and even larger gaps that need patched I just use thick viscosity Gel Gorilla Glue (a strong super glue) and then hit it with some zip kicker catalyst.
You can still kind-of sculpt the gel with a toothpick to the general shape, then it gets rock-hard in seconds with a little catalyst sprayed on. I find that it sands more evenly with PLA prints, and I even sometimes mix a little PLA dust off my sanding block in with the glue.
I use Greenstuff to cast missing bits for OOP models I like to buy....this is not good. I may need to stock up.
Commodus Leitdorf Paints all of the Things!! The Breaking of the Averholme: An AoS Adventure
"We have clearly reached the point where only rampant and unchecked stabbing can save us." -Black Mage
So is this the same source GW gets theirs? Also I heard a YouTuber speak vaguely poorly of GSworld and not wanting to give them their business why would that be?
Why would GW care? They don't use it or sell it anymore.
GSW are either white supremacists or doubled down on being too dumb to care, steal IP, then get super-aggro about people 'stealing' their IP. Just all in all classy folks.
RustyNumber wrote: So is this the same source GW gets theirs? Also I heard a YouTuber speak vaguely poorly of GSworld and not wanting to give them their business why would that be?
GSW are well known for their very shonky business practices. They don't pay their artists. They've got this nasty habit of trademarking things that don't belong to them. They're bullies and thieves among other things.
They also lead heavily into the GW method of pricing. Most of the gak they sell is just temu grade product with an exorbitant price tag slapped on.
The search function is out of commission at the moment so I can't find the Dakka threads that go through it, but hopefully someone else can link them.
Wow that's something I didn't expect to see - I've seen greenstuff on sale in every hobby shop I've ever been in. I didn't realise GW didn't sell it any more. I assumed it was a decent little staple that was chugging away.
I've only recently really gotten half decent at working with GS despite years of using it (improperly) too!
Some FB threads regarding the quality of GSW greenstuff.
It's exactly the same I experienced all those years back during covid.
"Trevor Goddard
Last few packs I have bought have been crap
And they were GSW
Reply
Ian Wood
GSW use their own version, from memory.
Satyr Art Studio
Trevor Goddard I strongly suspect that GSW might have not produced any GS since early 2025, and everything out there right now is at least months old.
Trevor Goddard
Satyr Art Studio yeah, the outside of the yellow has gone hard. It's unusable
Da Boss wrote: Wow that's something I didn't expect to see - I've seen greenstuff on sale in every hobby shop I've ever been in. I didn't realise GW didn't sell it any more. I assumed it was a decent little staple that was chugging away.
Yeah I think they quietly stopped selling it around the time they got serious at pushing out finecast. I think it was also when they were stripping out the Forgeworld models as well from AoS and 40K but before Old World really took off and brought back the FW Fantasy models for the most part.
With GW pushing plastics everywhere there was just no pressure on them to have greenstuff on the shelf any more. Sure it still pops up all the time in hobby articles and such, but its no longer something they worry about supplying themselves.
