Dramm - Hydrosensitive Spray Paper

Brand: Dramm

Hydrosensitive Spray Paper

Water sensitive test paper: yellow sheets that stain blue where they are struck by water or oil, so an applicator can see where the spray actually landed and how densely. Pin a sheet in the canopy, spray, and read the stipple - it shows droplet density, penetration, spray width and distribution rather than what the operator assumes is happening. Bought for commissioning nozzles, checking coverage on dense crops and training new applicators.

One pack size, and it is 10 individual loose sheets rather than 10 books. That is enough to place several sheets through a single canopy in one pass - top, mid and underside - which is how the paper earns its keep, since a single sheet only tells you about one point. Because it reacts to oil as well as water, oil-carrier sprays register too.

Specifications

Key Features

• Shows deposit where it actually landed rather than where the applicator assumes it landed
• Yellow to blue contrast reads by eye in the house, with no instrument needed
• Reacts to oil as well as water, so oil-carrier applications register
• Ten loose sheets per pack, so a canopy can be sampled at several depths in one pass
• Checks a nozzle or tip choice before a full tank of chemical is committed to it
• A direct teaching aid for training new applicators

Ideal Applications

• Verifying coverage after changing a nozzle or tip
• Checking canopy penetration on dense or layered crops
• Comparing walking speed, boom height or spray timing
• Training new applicators
• Documenting spray coverage for a customer or an audit

Dramm lists it against the whole chemical application range it is meant to check - hydraulic sprayers, backpacks, thermal foggers, coldfoggers, ULV machines and foamers.