Frequently Asked Questions

Click here to create a new account

Try logging into your account and click on 'forgot my password.' You will be prompted through steps in order to change your password.

Click here to find out how to earn points and view your rewards!

• Place an order - $0.5 = 1 point
• +50 Loyalty Points on your birthday
• +25 Loyalty Points for liking us or sharing us on Facebook
• +25 Loyalty Points for following us on Instagram
• +150 Loyalty Points for refering a friend
• +50 Loyalty Points for leaving a product review (max 5 per week)

Log into your account and click 'Rewards Program' at the top right of the homepage. Your rewards details will pop up showing how many Loyalty Points you have and which rewards you are eligible for.

No. You cannot use any rewards in conjunction with a sale or other discount code.

Call us with any issues. If we cannot figure out the problem, we can help you place the order over the phone using your discount code.

(925) 590-2995

Yes, we offer a discount for veterans and boy scouts! Please call us, and we can give you a unique discount code or help place your order over the phone.

(925) 590-2995

One gallon of putty will cover 336 linear feet | one quart of putty will cover 84 linear feet 

It is advisable to apply the putty in above freezing temperatures. Make sure the putty is pliable during application.

Avoid application in frosty or damp conditions.

A high quality acrylic/latex or oil based paint.

Ottosson Linseed Oil Paint would be a great option

D/2 is effective on mold, algae, mildew, lichens, and air pollutants.

The most common kind of staining found on gravestones and cemetery monuments is biological activity consisting of all types of growth listed here

D/2 Biological Solution is safe to use on

• marble
• granite
• limestone
• brownstone
• travertine
• masonry - brick and cast stone
• terra cotta
• concrete
• stucco
• wood
• aluminum
• vinyl siding
• canvas
• nylon
• other architectural surfaces including monuments, sculpture and headstones

We are working on instructional sheets to send with D/2 orders!

Immediate Result Scrub Method

1. First, always make sure the stone you are working on is not unstable or leaning as this could be extremely dangerous!
2. If there is raised lichen present on the stone, spray with D/2 or water and use a flexible plastic scraper to scrape off the heavy growth.
3. Apply D/2 Biological Solution hand pump sprayer or lithium ion power sprayer (view our sprayers here!)
4. Allow undiluted D/2 to remain on the surface 10-15 minutes
5. Apply additional D/2 as necessary to maintain a wet surface
6. Scrub with soft nylon or natural bristle brush. NEVER EVER USE METAL BRUSHES! (view our gravestone restoration brushes and scrapers here)
7. Lightly mist with water and continue scrubbing
8. When scrubbing is complete, rinse thoroughly with clean, potable water

No Scrub / No Rinse Method

1. Using a sprayer, wet the entire surface with D/2
2. Walk away and allow to air dry

Regardless of which method is used, D/2 will continue to work with the cycle of natural elements. Results will occur in about one week to one month, depending on severity of soil. Sometimes maximum results may take up to 6 months.

Reapply if rain occurs within 12 hours of application.

D/2 Biological Solution has coverage of roughly 250-300 square feet/gallon. The quart size, therefore, will clean roughly 60-75 square feet. You can get away with 1-2 average sized stones with the quart! This will vary depending on how much growth is present and how much of the solution is used.

Typically D/2 is used undiluted for optimal effects, although you can dilute if you wish.

D/2 Biological Solution is the most widely used gravestone cleaner in America. It is biodegradable and has a pH of 9.5. D/2 has been used on the White House, Arlington Cemetery, Gettysburg Cemetery and many more.  

Yes! This means that the D/2 is working. The orange / yellow tint comes from the biological growth dying off, similar to the leaves changing colors during the fall. The color should dissapear over the next few weeks as the solution continues to work. 

The expiration date on D/2 is 5 years from when the container is opened

D/2 Biological Solution will freeze if left in very cold temperatures for an extended period of time. The freezing temperature of D/2 is about 10-16 degrees Fahrenheit, and the D/2 will mostly turn to a thick slush. Freezing does not harm D/2, and once it thaws it will still be good to use. Be careful, though! If your D/2 freezes, it may crack the container and will leak once in liquid form again.

D/2 biological solution can be applied in any temperature above freezing as long as the stone dries before temperatures drop below freezing. It could be applied on a day that’s 45° without any issues. Additionally, D/2 actually will not freeze till about 10°F. It has a lower freezing temperature than water due to the surfactants. Fall is an excellent time to apply D/2. It will not have as quick / immediate cleaning effect and will have a more delayed effect. In many cases, the stones will look amazing by spring!

Yes, D/2 is safe to use on bronze but it will not clean oxidation.

Click here for bronze restoration products

Permission should be requested in advance of performing any cemetery preservation work. Depending on the location of the cemetery this may include many different situations. Cemeteries that have staff on the site should be notified in advance of work being performed. 

If a cemetery is maintained by the town then there will be a contact number available for you to reach. 

Abandoned cemeteries represent a unique situation where there is no one simple answer. It would be wise to contact the local historic society, or funeral directors in the region may have information to help determine if there is any stewardship of the site. 

This depends on the location of the specific cemetery, and the regulations that are applicable. 

Generally speaking, cleaning of your own family or relative's gravestones should always be allowed.

Technical Data:

No. Only the D/2 Quarts come with spray nozzles.

There are many other possible causes of staining such as atmospheric staining from soot and pollution, which is most often found in cities. Another common form of staining is caused by iron oxidizing and becomes a rust color on the stone.

Additionally there are many other possible forms of staining that may be encountered including: graffiti, sap from trees, and oil from maintenance equipment. 

We carry many specific cleaning products designed for these situations! Stone Cleaning Products

Yes! Permission should be requested in advance of performing any cemetery preservation work. Depending on the location of the cemetery this may include many different situations. Cemeteries that have staff on the sight should be notified in advance of work being performed. If a cemetery is maintained by the town then there will be a contact number available for you to reach. 

Abandoned cemeteries represent a unique situation where there is no one simple answer. It would be wise to contact the local historic society, or funeral directors in the region may have information to help determine if there is any stewardship of the site. 

Do I need permission to work on my family's plot?

This all depends on the location of the specific cemetery, and the regulations that are applicable. Generally speaking, cleaning and working on your own family or relative's gravestones should always be allowed.

D/2 Biological Solution is the most effective gravestone cleaner for the removal of biological growth 

This is one of the most commonly asked questions.

Conventional wisdom would dictate that when a stone is sealed then it would be protected from weathering and the elements of nature. However, monuments, gravestones, and historic masonry must be able to both absorb and expel vapor or else moisture will be trapped within the stone which can lead to deterioration, which will cause more harm than good.

Instead of sealing stone, there are some beneficial treatments that will help protect, preserve, and strengthen stone that do not trap moisture. These include breathable water repellents and consolidation treatments.

Repellents

Consolidation Treatments

Cemetery monuments are very heavy, due to stone weighing at least 150 pounds per cubic foot. Great care should be taken not to harm the monument, and most importantly that no injuries occur to the personnel performing the repairs. 

Because there is so much nuance with this subject matter, it would be wise to consult a professional and/or attend a workshop or training seminar before undertaking a cemetery preservation project.

For more info, check out gravestonepreservation.info and a video produced by Millennial Stone Cleaner on YouTube!

Materials

If you're ready to perform this task, these are the most commonly used materials:

• If the base of the monument needs to be raised or releveled, always use crushed stone and sand to stabilize it (found at your local hardware store or nursery)
• Epoxy Putty - we recommend Pratley Standard Setting Putty single unit  or contractor box
• Monument Setting Compound
• Wedge Lead
• Pry Bar
• Level
• Lifting & Rigging Equipment
• Reinforcement rods are sometimes neccesary

There are many situations that occur when we cannot be sure what is located under ground. There are some high tech procedures such as ground penetrating radar which can be employed, but they are time consuming and expensive. 

With a simple probe a great deal can determined about underground features; including sunken stones, burial vaults, and other underground anomalies. By successively probing in a sequential pattern it can often be determined where there are underground abnormalities that may indicate hidden gravestones or foundations. However, rock terrain, tree roots, and hard clay soil can make this process difficult. 

Steel Probes

Yes, all the monument setting compound that we have is ready to use. 

*Question and image submitted by Dustin*

There are a few different options depending on the specific situation. A knife-grade epoxy is preferable over a flow-able liquid.

One of the biggest variables between epoxies is how thick they are which will effect their performance when joining broken stones. The Akepox 2010 is the thinnest of the knife-grade epoxies, the Akepox 2030 is thicker, and Akepox 2040 is the thickest with the most fillers in it allowing it to span gaps and is better suited for highly eroded stone.

Akepox 5010 is the most popular and widely used epoxy. This epoxy is clear, food-safe, and UV stable meaning it will not discolor over time. This epoxy can also be pigmented with the Akepox Colorants in order to achieve a color consistent with the stone you're working on.

Knife-Grade Epoxy

Without the proper tool it can be a bit tricky to open a new can of epoxy. It is best to use a very thin tool such as a margin trowel. Gently push the trowel between the can and lid then slowly ease it all the way around working the lid open. 

Click here to view a video on opening and mixing Akepox Epoxy!

Akepox epoxies are sold by weight, not by volume. All Akepox epoxies are consistent with a simple 2:1 mixing ratio.

In a laboratory setting or indoor environment the epoxy can be weighed to exact proportions, however working in an outdoor environment we have found that it can easily be proportioned and mixed with plastic spoons and paper plates. This simple mixing procedure will save you time and money.

Mixing Epoxy

It is recommended to always wear protective gloves when handling and mixing epoxy to avoid skin contact.

There is a calendar in our Events Page where you can see Jon's schedule. The events listed here include 48 State Tour workshops. These are hosted by Jon and local cemeteries/organizations.

48 State Tour workshops are completely free to the public!

Please contact us with your name, cemetery name & address, and details on what you need! We will get back to you as soon as possible to discuss details

[email protected]  |  (860)426-3111  |  (860)558-2785

Yes. Jon can travel to specific locations for private jobs. He has the capability to work in a cemetery, singlehandedly to fix a number of stones. Please contact us if your are interested in a private job.

[email protected]  |  (860)426-3111  |  (860)558-2785 

We are currently working on these! Stay tuned for email updates and subscribe to us on YouTube.