What Fountain Solution Does on Press
Fountain solution is the water-based chemistry used on an offset press to keep non-image areas clean while the plate carries ink to the image areas. When it is mixed and maintained correctly, it helps control toning, scumming and dirty backgrounds, while keeping colour more stable through the run. On busy production floors in Johannesburg, Pretoria, Midrand and Germiston, that balance matters because small changes in water quality, temperature and alcohol replacement can show up quickly on the sheet.
We supply fountain solution for commercial print, packaging work and general litho production where consistent dampening is needed. It suits sheet-fed and web operations, and it is often used with plate chemistry, wash programmes and regular colour checks as part of daily press control. If the chemistry drifts, the pressman will normally see it first in the image and non-image areas long before the job is finished.
Sizes and Mixing Options for Different Pressrooms
Fountain solution is usually supplied as a concentrate or ready-to-use blend, depending on the press setup and the level of control needed on site. Smaller print rooms may prefer 5 litre or 20 litre packs for easier handling, while larger shops often order 25 litre, 200 litre or bulk supply for better stock planning. The right choice depends on throughput, storage space and how often the chemistry is adjusted during the month.
- Concentrate for controlled mixing on site
- Ready-to-use options for faster make-up and simpler handling
- Pack sizes from 5 litre to 200 litre, with bulk supply available
- Suitable for manual mixing or dosing systems where fitted
- Can be matched with pressroom water conditions and plate type
If your operation runs multiple shifts or prints long runs, it helps to standardise one formula across the plant so the team is not chasing different results from one press to the next. That reduces waste and keeps make-ready times shorter, especially when changeovers interrupt normal routines and presses come back up under pressure.
Presses, Inks and Plates It Works With
This product suits offset printers that need predictable dampening on commercial, packaging and finishing work. It is commonly used on jobs that need cleaner solids, sharper text and better ink control on coated and uncoated stock. In every plant, the chemistry has to work with the actual shop conditions, not just the press manual, because humidity, temperature and water quality all affect the result.
It is also used alongside plate handling, chemistry balancing and press startup checks to keep the pressroom running properly from the first sheet. Where operators are managing multiple jobs in a day, the dampening mix must stay stable enough to avoid constant correction. That saves time and reduces the chance of wasting plates, blankets and paper on make-ready sheets.
- Commercial offset printing
- Packaging and general litho work
- Sheet-fed and web press environments
- Pressrooms using water circulation or dosing systems
- Sites that need stronger control over toning and ink emulsification
Mixing, Dosing and Site Checks
The solution itself is a liquid you mix and dose, usually through pumps, circulation units or dosing systems that need their own checks. For that reason, the site needs clean storage, correct labelling and a safe make-up area close to the press or chemical room. A level floor, bunded storage where required and good ventilation all help keep the area safe and orderly.
In many South African printrooms the practical issue is not the product itself but the way it is handled. If the solution is mixed too far from the press, or stored in poor conditions, the mix can go off before it is used. Keep containers sealed, away from direct sun and not next to blanket wash, ink or cleaning rags. That simple discipline avoids contamination and costly press stoppages.
- No direct gas connection needed
- Power only required where dosing or circulation equipment is installed
- Cool, dry storage out of the sun
- Keep containers clearly marked and closed after use
- Use dedicated measuring equipment for mixing to avoid cross-contamination
Care, Servicing and Day-to-Day Control
Good fountain solution management is not a once-off task. It needs regular checks on pH, conductivity and dilution so the press stays within the working range. If those numbers drift, the dampening system starts fighting the job instead of supporting it. Teams in Roodepoort, Randburg and Industria West often build these checks into the shift handover so problems are picked up early, not after a reel or pallet has been wasted.
We can assist with chemistry balancing, wash programmes, colour stability checks and production troubleshooting. On some sites the issue is the plate, on others it is the water, and sometimes it is the blanket condition or processor setup. A proper check avoids guesswork and helps the pressroom stay productive without constant corrections. It’s a small thing, but it makes a big difference over a long week.
What to Check Before You Order
Before placing an order, it helps to confirm the press type, the size of the system, the water conditions and whether you are using alcohol replacement or standard dampening. You should also note the plate type, the stock being printed and any repeat issues such as toning, scumming or drying delays. Accurate water and press details let us pick a fount that suits.
- Press make-up and number of units
- Current fountain solution type and mix ratio
- Water source and any filtration in use
- Typical stock, coverage and run length
- Storage space and preferred pack size
- Delivery point in Johannesburg, Pretoria, Midrand, Germiston or nationwide
If you are unsure, send the details through and we will help you choose the most practical option. LithoPrinting Plates supplies from Industria West with national delivery, so whether you are in a busy city plant or a smaller finishing room, you can keep chemistry on hand without over-ordering stock.
Key facts
| Product type | Offset press fountain solution / dampening chemistry |
|---|---|
| Use | Ink-water balance, cleaner non-image areas and steadier colour control |
| Pack sizes | Packs of 5, 20, 25 and 200 litres, or bulk |
| Compatibility | Sheet-fed and web offset presses, with manual or dosing systems |
| Site requirements | Cool dry storage, correct mixing area, sealed containers and clean measuring tools |
| Support | Chemistry balancing, startup help, troubleshooting and supply planning |
