Can this be applied with a syringe?

Durham's Water Putty can be diluted to anything from a very thick paste.... to something about the consistency of milk. So Yes... it could be applied with a syringe. Now, how strong that might be when it dries, is something that I cannot speak to. "Probably" it would be hard and strong, but perhaps not. I often mix Durham's Water Putty with lightweight spackle (about 50/50) and then dilute it a bit with water. This makes a great, easily sandable filler for balsa wood....If you are not familiar with this product, it comes as a dry powder (similar to pancake mix)... and you dilute it with water to suit your application...

Does this only come in white? I need to fill knot holes in a wood floor and wanted a dark color

I have mixed the putty with the stain instead of water, you can stain after if it needs to be darker

Can this be used on a rotted porch step if primed/painted after? One post says you need to add resin for hardening. Do you ? Tks!

Yes, absolutely! I used this product on a severely rotted window frame. I mixed the batter to the consistency of soft ice cream. Using a spackle knife I packed the putty into the rotted area and let dry 24 hours to cure. In the morning, I sanded, primed and painted it. This was three years ago, still looks great and it never leaked once.

Can it be injected into rotted wood

The rotted wood must be treated with a product designed to "coat" affected area. The rotted wood that can be removed with, for example, a wire brush must be done. If the entire wood member is rotted it cannot be repaired. After treatment with the rotted wood product Durhams may be used as a "filler".

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DURHAM'S Rock Hard Water Putty - 4lb Container

Product ID: 335918793

Details

Brand
DURHAM'S
Item Form
Putty
Material
Resin
Special Feature
Strong Bonding
Specific Uses For Product
Wall Repair

⚙️4lb powder-to-putty mix

🌦️Indoor/outdoor use (painted outdoors)

🛠️No shrinkage, strong bond

SI$1986

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Description

🛠️ Fix it once, fix it rock hard — Durham’s Water Putty means business.

TRUSTED BY THOUSANDS - 4.6-star rating from over 2,300 pros and DIYers who swear by its performance.
UNMATCHED DURABILITY - Never shrinks and forms a rock-hard bond that lasts on wood, plaster, concrete, and more.
VERSATILE FIX IT POWER - Perfect for filling holes and cracks across multiple surfaces—wood, tile, stone, drywall.
WEATHER READY STRENGTH - Use indoors or outdoors—just keep it painted outside to maintain its resilience.
EFFORTLESS PRO GRADE REPAIRS - Just add water and mix for a ready-to-use, smooth putty that sands easily.

DURHAM'S Rock Hard Water Putty is a 4lb gypsum-based powder that transforms into a durable, non-shrinking filler when mixed with water. Ideal for professional-quality repairs on wood, plaster, drywall, stone, tile, and concrete, it offers strong bonding and water resistance for both indoor and outdoor applications (outdoor use requires painting). Highly rated by thousands, it delivers versatile, long-lasting patching power in a convenient, easy-to-use formula.

Specifications

ASIN	B000LNS2LU
Brand	DURHAM'S
Brand Name	DURHAM'S
Colour	White
Compatible Material	Concrete
Container Type	Pail
Country of Publication	USA
Customer Reviews	4.6 out of 5 stars 2,367 Reviews
Global Trade Identification Number	00076694000046
Included Components	water putty
Item Form	Putty
Item Package Quantity	1
Item Type Name	water putty
Item Weight	4.2 Pounds
Manufacturer	RH Brands, Inc.
Material	Resin
Material Type	Resin
Model	76694000046
Other Special Features of the Product	Strong Bonding, Does Not Shrink, Versatile Applications
Special Feature	Strong Bonding, Does Not Shrink, Versatile Applications
Specific Uses For Product	Wall Repair, Repair, Woodworking, Wood, Furniture, Tile Repair, Masonry
UPC	076694000046
Unit Count	1892.7 Milliliters
Viscosity	Medium to High Viscosity
Volume	4 Litres
Water Resistance Level	Water Resistant

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SI$1986

Duties & taxes included

In stock

Sold byAmazon Solomon IslandsDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Solomon Islands.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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