Meet Becca Berger, a Silicon Valley-based CleanTech coatings inventor, who is using AI, VR, Apple Vision Pro, and solar power to disrupt paint and wood stains!☀️

Most disruptors solve a problem, should we start with the problem?
Wood stain has been a professional's product for a hundred years. The DIY shelf carries the same chemistry the pros use, with the same failure modes, wipe-on, wipe-off technique, layered color tones, multi-day cure, and a smell that drives everyone out of the room.
For a DIYer attempting a high-stakes aesthetic project, that's a bad bet. One wrong move means uneven color, a ruined surface, and hours of sanding to start over. So most homeowners look at their oak end table, picture the driftwood finish they actually want, and either pay a finisher $800 or give up.
The category has optimized for professional control, not consumer confidence. There is no third option. WeatherWash exists to create one.
So what's your solution?
You're ambitious! What is your endgame vision?
"A category takeover, but the takeover happens by converting Minwax buyers, not by replacing Minwax overnight. The mechanism is the consumer wedge inside a structural softness. SHW's most recent 10-K shows the Consumer Brands Group, the segment that houses Minwax, Cabot, and the rest of the legacy wood-care portfolio, grew 1.9% in 2025, but the entire gain came from a Latin American acquisition. Strip the acquisition out and organic sales were flat-to-down. Across the company, volume is shrinking and price is doing the work.
Meanwhile, DIY participation grew to 56% of consumers in 2024, up from 50% the year before. The DIYer is showing up to the shelf more often. The legacy brands aren't capturing the growth.
That's the gap I'm walking into. My buyer is the LOHAS (Lifestyle of Health and Sustainability) DIYer who picks up a can of Minwax, smells it, reads the label, puts it back, and pulls out their phone. They're already converting away from the incumbent, Minwax just hasn't given them somewhere to go. WeatherWash is somewhere to go. One coat instead of three. No respirator. The driftwood look they love on the first try.
The takeover isn't an overnight replacement. It's a slow conversion at the shelf, one quart at a time, by being the brand the LOHAS DIYer reaches for after they put Minwax back. Every buyer I convert is a buyer Minwax doesn't get back, because once a DIYer gets the finish they wanted on a Saturday, they don't go back to wipe-on-wipe-off chemistry. The crossover isn't price-driven. It's experience-driven. We're almost at price parity, at $19.97 on the shelf, making the conversion frictionless."
How will you market those products?
"Right now the engine is Instagram. I have over 31K followers, more than Minwax. More than Varathane. More than the two industry leaders combined have been able to build with the marketing budgets of a Sherwin-Williams and an RPM behind them. That's not a vanity number. That's organic LOHAS acquisition with minimal spend, which is a capability the incumbents don't have and can't buy at any price.
The loop is straightforward. A DIYer picks up a quart, finishes a project they're proud of, posts it. Other DIYers see it, recognize the finish, and want it. They buy a quart, finish a project, post it. The flywheel runs on three things, finish quality the DIYer wants to be photographed with, a founder who replies in the comments, and a community that sees itself in the work. Every project posted is a customer acquisition cost of zero and a piece of evidence that the chemistry delivers.
The interesting question for the category isn't whether I can scale the loop. It's whether anyone can replicate it after the fact. A flywheel that runs on authenticity is hard to reverse-engineer once it's spinning."
What is the difference between clean tech coatings and regular coatings?
"Clean tech coatings are manufactured with renewable resources and energy sources. The products are designed to enhance energy efficiency, reduce maintenance needs, enable self-cleaning, offer UV protection, cut toxic chemicals, lower emissions, and environmental degradation. WeatherWash is my flagship clean-tech coating; the broader product line operates under CleanTech Coatings."
Do they perform as well as products on the shelf?
"Better, and I can prove it with documents. Every competitor on the shelf right now carries either a California Prop 65 cancer warning, a skin sensitizer classification, or VOC levels up to 50 times higher than WeatherWash. PPG independently validated our sub-13 minute dry time, Varathane's own label says one hour. BEHR's version contains a biocide that requires international export notification as a restricted substance. Minwax Charred carries a carcinogenicity warning. WeatherWash uses low-toxicity, waterborne ingredients designed for consumer-safe application and low VOC exposure.
The honest answer on price is yes, we're about 69 cents above Varathane per quart at retail today. That's the CleanTech premium at current volume. My goal is to eliminate that gap entirely through continuous flow manufacturing at scale, same chemistry, same zero-VOC formula, same sub-13 minute dry time, but at a cost structure that makes us the lowest price on the shelf. The incumbents spent their R&D budget making a toxic copy. We spent ours getting the chemistry right the first time."
How will you teach the masses?
"This is why I'm developing a quality of life app that uses virtual reality and AI to scan colors in the home and make matching recommendations. Think about how Tesla sold you a Cybertruck. You didn't walk into a dealership. You opened an app, picked the configuration, saw it rendered in your driveway, put down a deposit, and waited for the truck to show up. Tesla didn't make the truck simpler. It made the decision simpler, by giving the buyer everything the dealership used to provide at the moment they actually wanted it, instead of forcing them into a parking lot on a Saturday.
That's the move for coatings. The DIYer's current path is three or four decisions and at least two trips to Home Depot, and most of them don't get past step three. The category lost the sale before the can left the shelf.
Spatial computing collapses the path. The room becomes the input. A scan captures the wall color, the wood tone, the lighting. An AI layer recommends matching products and renders them in place before the DIYer commits, entertainment center in WeatherWash Driftwood, next to the wall they already have, on the floor they already have. They order from the room, in the room, on a Sunday morning, and the quart shows up same day. We're building toward that loop.
The chemistry is what makes it honest. A rendered finish only works if the actual finish matches the render, and the only way to guarantee a one-coat match is a chemistry that reacts with the wood instead of sitting on top of it. The visualization breaks the moment the customer applies the product and the result doesn't look like the preview. The platform is downstream of the can.
And the chemistry does something the app can't: it de-skills the application. A DIYer with zero experience gets the Restoration Hardware look on a Saturday. No layering. No wipe-on-wipe-off. The app tells them what to buy; the chemistry tells the wood what to do. The DIYer is in between, holding a brush, and the result still comes out right.
That's the takeover mechanism. Not a marketing campaign. Not a price war. The DIYer who finishes their first project on a Saturday and posts the result doesn't go back to wipe-on-wipe-off chemistry the next weekend, instead they tell three friends, and the friends don't go to Minwax either. The legacy brands keep their shelf space and lose the next generation of buyer at the same time. Slow at first. Then all at once.
Capture the sale at home. Make the result foolproof. Repeat. Whoever owns that loop in three years owns category definition. Apple Vision Pro is one path into spatial computing, it might be the winning platform, it might not. The thesis doesn't depend on AVP. It depends on spatial computing as a category arriving on a timeline that lets the chemistry meet it. I think it does. The chemistry is already here. We're building the rest."
Ok, I get it, that's the tech piece, so what's the problem with oil-based coatings?
"Three things, and they compound. First, oil-based stain is built for the professional applicator. The technique is wipe-on, wipe-off, layer the tones, work fast before it sets, that's a learned skill, and a DIYer who hasn't learned it gets blotch, drag marks, and uneven color. I lived through that. I tried to do my own pieces and the Minwax wouldn't give me the finish I could see in my head. I'm not a finisher. Most DIYers aren't. The shelf doesn't care.
Second, the chemistry off-gases. VOCs and petroleum-based solvents, bad for the applicator, bad for the homeowner, bad for whoever's in the next room. You don't refinish your kitchen table on a Saturday and chase your kids out of the house for the rest of the weekend. The category has been telling DIYers to do that for a hundred years.
Third, the dry times. Multi-day cure on most oil-based formulas. The DIYer who picks up the can on Saturday morning isn't done with the project until Tuesday, and that's if they got the technique right on the first coat.
So I built a stain that fixes all three at once. Tannin-reactive waterborne chemistry, controlled-stop reaction, one coat, fast cure. No professional technique required. No respirator. The Restoration Hardware look on a Saturday, at a Walmart price. That's the value. The rest is execution."
While she works, I learn that a combination of events inspired her. First was a quote from Tim Cook in the "Elysis" project press release (link.) The second was in Bill Gates book "How to Avoid a Climate Disaster.
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So the stain was your minimum viable product, did your customers want more than a wood stain?
Wood stain is a commodity, so the lifetime value of the customer is good, but how do you plan to cross what Geoffrey Moore calls the "Chasm," and establish the lifetime value with the majority markets?
Can you tell me about the coatings market?
Who is your target customer?
Becca attributes her success to lessons she learned in her MBA operations class. She has capitalized off of continuous flow manufacturing (CFM) and just-in-time delivery (JIT) processes that she learned in MBA case studies. What are some constraints that you're experiencing as you scale?
As states have begun to regulate paint and stain emissions, do you see any opportunities to capture those laggard markets?
How is your product innovative?
What's the difference between Sherwin William's manufacturing process and yours?
I approached manufacturing with a simple constraint: reduce energy intensity at the process level, not just at the facility level.
First, I developed a waterborne formulation designed to eliminate VOC-heavy solvents and reduce hazardous inputs.
Second, instead of relying solely on grid or panel-generated electricity, I use direct solar-thermal input to heat and process batches inside the vessel. That reduces external energy demand during production.
Third, I’ve taken that same formulation and process into retail distribution, including Walmart, proving the model can operate beyond the lab.
Historically, coatings manufacturing scaled on the back of inexpensive fossil energy. I’m building a version of that system that works with lower-energy inputs and cleaner chemistry.”
Weatherwash Plant
Are your materials renewable?
As we scale, we plan to validate the full lifecycle impact with third-party analysis. The objective is straightforward: drive coatings toward a net-zero manufacturing model."
Circling back to the stain, your product is truly magic in a quart, but your operation is next level. You said that you use the power of the sun to make the product. Can you tell me how you do that?
Instead of relying entirely on electric or fossil-fuel heat, I use direct solar-thermal input to heat and process batches inside the vessel. The formulation and process are designed to absorb and retain heat efficiently, which reduces the need for external energy during production.
As we scale, automation and additional energy inputs, including solar-generated electricity, will support higher throughput. The goal is to build a manufacturing system that reduces reliance on fossil energy at both the process and facility level.
That’s what I see as the future of low-carbon coatings manufacturing! πΊπΈ"
How do efficiencies play a role in CleanTech?
If you had one wish, what would it be?
What would you give up?
That's a wrap.
Here is what I think a coatings strategist would take away from a day at WeatherWash.
The chemistry is substantiated. Tannin-reactive waterborne stain with a controlled-stop reaction is a genuine chemistry differentiator, not a marketing claim. A polymer chemist can understand the mechanism quickly. Getting it to stop consistently across different wood species, moisture levels, and real-world application variance is where most attempts break. That’s the moat.
The manufacturing is real. Solar-thermal direct-capture cooking the batch inside the tote, 78% efficiency today, 92% target at scale. The numbers will need diligence. The operation will not.
The brand franchise is structurally interesting. 31,300 Instagram followers, more than Minwax, more than Varathane, with no paid acquisition spend. That's an organic LOHAS-acquisition capability the incumbents don't have and can't buy at any price. It's the part of the asset that compounds the longest.
The platform is roadmap, not product. The room-scan visualization layer, the AI recommendation engine, the rendered-in-place finish preview, direction of travel. Becca and her team are building toward it; they're not selling it yet. The chemistry is the wedge. The platform only works because the chemistry already does.
The category is at a moment. The legacy DIY brands are flat-to-down on volume. DIY participation is up. The next-generation buyer is forming preferences online, on Instagram, on Vision Pro and whatever comes after, and the brands they pick today are the brands they'll buy from for thirty years. The question for any incumbent is whether they want to compete for that buyer or watch a one-woman operation in California acquire her without them.
The ripple thesis, in one sentence. Light bulbs, alternating current, and the automobile redrew their categories not when they were invented but when the supporting infrastructure caught up. WeatherWash is the chemistry. Spatial computing is the infrastructure catching up.
An incumbent can try to replicate the chemistry, rebuild the community, and retrain the DIY customer, or they can acquire it already working. The question isn’t whether WeatherWash fits inside a coatings portfolio. It’s whether a coatings portfolio can afford not to have it.
Want to support WeatherWash?
Go to your local Walmart store or go online to Walmart.com, HomeDepot.com, Amazon.com, Lowes.com or Becca's website, WeatherwashCoatings.com. Just search for WeatherWash and don't forget to leave a review! π




































