How to Make a Custom Concrete Stamp out of Urethane Rubber

How to Make a Concrete Stamp Using PMC-780
Contents:
0:41 - Stone Paver Model Preparation
1:33 - Stone Paver Layout
3:32 - Making the Mold Box
4:46 - Creating Artificial Grout Line
6:12 - Making Handling Straps
7:15 - Mixing and Pouring PMC-780 Mold Rubber
9:06 - Demold
PMC-780 is a high performance urethane rubber that offers exceptional strength, durability and abrasion resistance.
Advantages of Stamping Concrete:
* Limitless design options
* Can be made to look like brick, stone, wood and more
* Stamp concrete indoors or out
* Lower labor and material cost
* Complete any project in a fraction of the time
* Lasting Durability: Concrete lasts for years and requires low mainenence
Stone Paver Model Preparation (0:41)
Melamine board will be used as the base. Our model is a concrete stone paver. Stone paver dimensions: 12"x12"x1" (30.5cm x 30.5cm x 2.5cm). Four pavers will be used to create the model. Sonite Wax will be used to seal the stone paver. Sonite Wax is applied over entire face surface of the paver with a brush. Sealing is required to prevent adhesion during the mold making process. The process is repeated for the other pavers.
Stone Paver Layout (1:33)
Place the first paver a few inches from the edge of the baseboard. A second paver is placed with a 1/4" (0.6cm) gap in between to represent the grout line. The last two pavers are offset from the first row. A 1/4" grout line is maintained throughout the pattern. Paint sticks are used as spacers for creating the artificial grout lines. A steel square (right angle) is used to square the pavers. A pencil is used to create an outline of the pavers. The pencil outline will be used as a guideline when gluing the pavers to the baseboard. Hot-melt glue is applied to the inside perimeter of the outline. The glue holds the pavers in place to ensure proper placement when molding. Process is repeated for the other three pavers. Paint sticks are placed around the paver perimeter to represent outside grout line. Glue is used to adhere paint sticks together.
Making the Mold Box (3:32)
To construct the mold walls, measurements are taken from the outside edges. Melamine board is cut to size and will be used to construct the mold box walls. Remove all paint sticks. Place mold box walls into position. A 1/4" grout line is maintained between pavers and around the perimeter. Walls are secured with drywall screws. Paint sticks are placed around the mold box perimeter to ensure proper grout spacing.
Creating Artificial Grout Line (4:46)
Sculptex non-sulfur based clay will be used to fill in the grout cavity. Sculptex is easily cut into 1/4" sefments with a knife. The clay is used to fill in the caity to create an artificial grout line. Remove spacers as needed. Clay is also placed along mold box walls. A chisel is used to create a "pointed grout" line in the clay. A chip brush is trimmed to stiffen the bristles. The brush is used to create a sanded grout texture. Hot-melt glue is applied to all seams of the mold box, preventing any leaks of mold rubber. Universal Mold Release is applied to all surfaces to prevent adhesion of the mold rubber.
Making Handling Straps (6:12)
Nylon webbing will be used to form straps that will be incorporated into the stamp. Two sections of nylon webbing are cut to approximately 14" (35.6 cm) in length. Webbing is looped to form a handle. The loop is held in place with a staple. Gallon containers will support the bridge in which the handles are suspended. Two paint sticks are glued together and will act as a bridge to support the webbing. The wood bridge is placed in the center of the mold box. Webbing is suspended 1/2" (1.3cm) above the model.
Mixing and Pouring PMC-780 Mold Rubber (7:15)
PMC-780 Urethane Rubber Compound, mix ratio 2A:1B by volume. Part B is pre-mixed before using. SO-Strong pigments were used to transform the PMC-780 (amber in color) into an opaque orange. SO-Strong White is added to Part B, this will make the translucent rubber opaque. Color tint is blended into Part B. SO-Strong Orange is added to Part B and mixed. Part A is dispensed into a large mixing bucket. Dispense the pigmented Part B into Part A. Mix thoroughly for three minutes. Scrape sides and bottom of mixing container to ensure a proper mix of materials. Slowly pour the rubber into the mold box. Rubber should level off at least 1/2" over the highest point of the model's surface. Adjustments are made to ensure the web handles are encapsulated in the rubber and not touching the face of the model. Let the rubber cure for 48 hours at room temperature (73°F/23°C) before demolding.
Demold (9:06)
A scraper is used to loosen the rubber from the mold box walls. Fully cured rubber is ready to demold. PMC-780 picks up all the detail from the original stone paver. PMC-780 rubber is durable yet flexible.
Make It Now! with Smooth-On
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[@jorge63490]

es un trabajo con muchos detalles y sutileza.

[@deividxr]

Man you are a genius. Liked so much

[@sikhatri]

Super video as always...thanks a bunch.

[@laghouatiomar]

Super video gracias.

[@scottb4767]

Yep, you convinced me to just purchase some, thanks!

[@smoothon]

Thanks Scott!

[@agbhargihad7325]

dont you end up with a double grout line when you nest them? shouldnt you leave the lines out on 2 edges?

[@engashrafhesen7127]

Good working

[@loslolloslolollos]

damn good job

[@smoothon]

Thank you for watching!

[@JoeCnNd]

Thinking the samething. Like leave the top and the left side or bottom or right or any way with the grout lines not being put against another grout line form.

[@keyvoz]

good!

[@Decora3DJE]

keyvoz key en Bogotá y Colombia yo vendo.

[@gregmitchell6213]

The first thing I noticed was that this would create a 1/2” grout line around the stamp. Then went to the comments and it seems everyone else did also.

[@keyvoz]

Hola! Muchas gracias por este video tan bien logrado. me gustaría saber donde puedo comprar los productos para fabricar mis propios moldes? saludos y esperare su respuesta.

[@alnahirtemuco]

excelente video explicativo. Qué duración o vida útil tienen esos moldes? y cómo puedo adquirir esos productos desde Chile?; existe algún distribuidor de sus productos en Chile?. Muchas gracias. Saludos !!

[@GaryPerez]

Nice video, What is the cost of producing your own stamp compared to the cost of purchasing a professionally made stamp? Are the savings that great?

[@hazemashraf1818]

good job Is the company a branch in Egypt and where to find these materials and whether these materials substitute for silicon

[@keyvoz]

Donde puedo comprar estos productos????

[@mohdrehman1600]

Make one video for information about product price and area we get

[@gordontarpley]

Are these supposed to interlock with other copies? If so, the faux grout line ALL the way around the exterior of the casting will create a 1/2" grout line as opposed to 1/4" like the center areas, breaking the illusion of real stone pavers. The look could be uniform if the grout lines were left off of sides in two directions (Tops and rights. for example) so the grout line would be a uniform 1/4" when these are laid down together.

[@1981LAB]

No, the same perimeter grout line is shared when going to the next section, this isn't rocket science

[@gordontarpley]

@@1981LAB cool snark. Unfortunately you're incorrect. Just watched again to be sure I didnt miss something and... I didn't. Wherever the castings meet up the grout will be twice as thick because both mating edges have the faux grout cast in. It's not rocket science.

[@1981LAB]

@gordontarpley the grout space on the edge of the mold is a void space so that very same grout line falls into the previously made grout line thus equal distance there is no increase in size. What you are saying is basically every other prefab mold on the market is also incorrect, and that's simply not the case.

[@PaoloKairos]

I don't undrstand why the clay are outside... should not be protruding... isn'it correct?

[@malekyousef34]

مرحبا اريد ان اسأل عن سعر هذا المنتج ..... وشكراً

[@cirtatec5990]

Hello witch kind of silicone ?

[@daveuncles919]

If you have a 1/4" grout on the inside stone and a 1/4" on the out side of the stone you will have a 1/2" grout line on the out side and a 1/4" on the inside stone? If you are going to have 1/4" joint, the joints on the outside should be 1/8" so when the two mats are placed together they create a 1/4" grout joint and if it leaves a line you can run a grout roller down it.

[@mariogaribay542]

Very true

[@elymisany]

You dont use 2 stamps with symmetrical stamps like this therefore when joining the next section you place the outside grout edge of the stamp inside of the previously stamped grout line, it gives you a working point for the next placement of the stamp, going with 1/8" around the edge leaves too much room for error, if the stamp isnt perfectly lined up on multiple edges it can completely throw off the thickness of the grout lines.

[@johnvine5731]

I did so want to temporarily insert paint sticks vertically in between all the slabs and the box frame (like tile spacers), to make sure everything was located correctly.

[@smoothon]

That could work! Great idea.

[@mohdrehman1600]

Make one video for information about product

[@zhigangxu2007]

Like your video! May I know where to buy Smooth-on's PMC -780?

[@smoothon]

Thanks for watching! A full distributor list can be found here: www.smooth-on.com/distributors/

[@hhattingh]

I am curious, can one make tool organizers using this method for wrenches and screwdrivers? Will it be to heavy for drawers with the tools or is there a lighter material/silicone that would work best?

[@smoothon]

You may want to look into a foam such as our FlexFoam-iT! series.

[@hhattingh]

@@smoothon Thank you!!

[@MrDiederikDuck]

Let the rubber cure for 48 hours? In that amount of time a skilled paver will have my driveway finished for at least three times.

[@gooblegobble2974]

this is incorrect, two sides of the stamp should be groutless or whole perimeter should be 1/2 a grout line

[@otmcc7838]

I agree the outside grout lines should be half of the field size.

[@cyberneticsynthetic5750]

So 1/8?

[@1981LAB]

No you are incorrect and the video is correct, perimeter grout lines are shared with the following mold. Thus, no increase in grout lines. The spacing will be messed up doing what you suggest.

[@1LSUredneck]

@@1981LAB they would be shared if you only used one mold and over lapped the exterior grout line for the next stamp. If I were to have 2 molds and layed one down to stamp, and butted up a second mold and stamped them, logic says that you would be leaving the impression in the concrete of both molds, thus creating two grout lines butting up next to each other that will be double the size of the field grout lines. If I’m missing something, please explain to me how 1/4” x 2 still equals one 1/4 grout line. The logic and math just doesn’t add up.

[@Noorstud]

Nice. How about if I need to buy a ready made ones. Where can I find them?

[@smoothon]

Send us a support ticket at www.smooth-on.com/support/ticket/add/ and we will help

[@lahkidd]

Can someone make me a stamp?? Let me know on price! Thank you in advance

[@tremainekahotea3357]

How much $ would it cost to make this concrete paver stamp?

[@smoothon]

Hi there! This is a good question for our tech support team, can you send them a ticket here? www.smooth-on.com/support/ticket/add/agree/ Thanks for watching!

[@Googaliemoogalie]

it bothers me how slow the guy is going

[@patrickbangura6873]

Not you he is making it for, for does who wants to buy his products

[@BruceBatista]

Watch it at 1.25 speed

[@OriginEnagic]

5556 t in theo thi hi up in

[@PthaloGreen2]

@@BruceBatista 1.5 speed is better!

[@mohdrehman1600]

Where we get this material in india

[@smoothon]

Thanks for watching mohd rehman. You can find a full list of Smooth-On distributors here - www.smooth-on.com/distributors/

[@cordariosimmons7439]

😯How many mats do u get out of that 5 gallon bucket?

[@smoothon]

It would depend on the depth of the detail.

[@joadojesus4997]

How can I get materials in Uganda cause the market is ready

[@smoothon]

Thanks for watching Joado Designing Company. You can find a full list of Smooth-On distributors here - www.smooth-on.com/distributors/

[@louandroctonus3522]

Price? If it's near what a bought one is .it's not really worth it

[@smoothon]

+lou androctonus Hi Lou, there are a lot of factors which can determine the price for making custom stamps. I would recommend contacting our Customer Support with some images and dimensions so we can provide an estimate: www.smooth-on.com/support/index.php?a=add

[@robmcbroomart]

Smooth-On What would be the approximate cost for making the one featured in the video?

[@Frxstynah]

I dont think this was intended to save money on stamps. It was intended to show how you can make your own custom stamps which are unique to set the concrete contractor apart from his generic competitors. Custom unique jobs can generate some profit for them. Like building your own furniture is almost always more expensive than Ikea..but you make what you want at whatever quality level you desire, its not about saving money.

[@fotomoments5311]

👏👏🇺🇾👍👍👋👋👋👋

[@danbenea8628]

cred ca e vorba de 6 mm nu de 6 cm. in rest e OK.

[@sureshyadagiri5904]

Hi Sir how to contact you

[@smoothon]

Can you send us a tech ticket? Our team can help you - www.smooth-on.com/support/ticket/add/agree/

[@lengthmuldoon]

That looked real squidgy I could poke and squeeze that stuff all day

[@lengthmuldoon]

@me and me with big squidgy tits? Not sure my wife would approve but fuck her, lol

[@smoothon]

Get ready for #WOC2015 with our KZbin videos. This video shows how to make #concrete stamps. buff.ly/1IpeCz9 buff.ly/1IpeEHe

[@ramaswamiyata8968]

Work vedio

[@seanset]

so is it the dry or the wet PMC 780?

[@smoothon]

This is PMC-780 DRY.