
CLEANER 7# Water-Based Cleaning Agents
Product Highlights
| RoHS PFAS | REACH PFAS | Broad material compatibility |
| Highly efficient cleaning ability | Suitable for a variety of cleaning processes | Easy to rinse, high efficiency |
Features
Cleans uncured solder paste from misprinted or incorrectly printed areas on steel screens, copper screens, plastic screens, and PCBs with fast cleaning speed and excellent results.
Compatible with stencil frames, stencils, adhesive tapes, and other materials without adverse reactions.
Uses deionized water as solvent—non-flammable for safe handling, transportation, and storage.
Completely halogen-free, compliant with RoHS and other environmental regulations.
Non-toxic to humans and the environment, biodegradable.
Wide process window with strong cleaning power, suitable for various cleaning methods, equipment, and processes.
Applicable processes
| Cleaning method | Cleaning agent | Rinse solution | Drying method |
| Spray | CLEANER 7# | Deionized water | Hot air circulation |
| Ultrasound | CLEANER 7# | Deionized water | Hot air circulation |
| Immersion | CLEANER 7# | Deionized water | Hot air circulation |
Physicochemical Parameters
| Appearance | Clear or pale yellow liquid |
| Density | 1.001±0.020 g/cm³ (20℃) |
| pH | 6.80±1.50 |
| Cleaning temperature | 30~60 ℃ |
| Flammability | Non-combustible |
| RoHS | PASS |
| Halogen content(ppm) | ND |
Packaging specifications
Cleaning is typically performed using ultrasonic or spray methods, though immersion and manual brushing may also be employed.
Cleaning duration ranges from 5 to 30 minutes, with specific timing adjusted according to product requirements.
Optimal temperature for cleaning and rinsing solutions is maintained between 45–55°C, with duration adjusted per product specifications.
After a period of cleaning, residue buildup in the cleaning solution reduces cleaning efficacy and compromises part cleanliness. Based on actual usage, regularly replenish or replace the cleaning solution in the tank (determined by the number of steel screens being cleaned).
After a period of rinsing, the concentration of cleaning agent in the rinse solution increases, leading to reduced cleanliness of the rinsed parts. Based on practical experience, it is recommended to replace the rinse solution every 2 to 4 hours (depending on the number of steel screens being cleaned).
Precautions
This product is a specialized cleaning agent that must be prepared with deionized water to form the working solution. The cleaning solution must not be mixed with other cleaning agents.
After opening the product and using a portion, the cap must be tightly secured to prevent the cleaning agent from evaporating.
Do not store used and unused cleaning agents in the same container. If any cleaning agent remains in the container after opening, do not leave it exposed to air; tighten the cap immediately.
Keep containers holding the cleaning agent clean to prevent contamination from dirt or other substances, which may affect the cleaning agent's quality.
Separation or cloudiness after prolonged storage is normal. Shake well before use for optimal results.
Ensure no cleaning agent residue remains on glass surfaces after rinsing.
After extended cleaning periods, adding the recommended defoamer will enhance foam suppression.
How to use
18L、20L、50L、100L、150L、200L、250L
Transportation and storage
Transport as non-hazardous chemicals and non-corrosive chemicals.
Store in a cool, dry place away from light and heat, and in an airtight container.
Shelf life is 12 months when sealed.
Single packages must not be stacked more than two layers, and the bottom layer must be secured with a non-slip tray to prevent squeezing, deformation, or tipping.
Shenzhen Varmia Technology Co., Ltd.
Address: Building A, Da Wan Cultural Plaza, No. 4128
Dongcheng Huan Road, Malan Subdistrict, Pingshan District, Shenzhen
Tel: 0755-27659820
Fax: 0755-27659830
Mobile: 13302956659 (Mr. Wang)
Email: hmy-tech@163.com
Shenzhen Varmia Technology Co., Ltd. (Longgang Branch)
Address: 2nd Floor, Building 12, Anbo Technology Industrial Park,
Baolong 4th Road, Baolong Avenue, Longgang District, Shenzhen
Tel: 0755-27659820
Fax: 0755-27659830
Mobile: 13392832759 (Ms. Jin)
Email: hmy_jinjing@yeah.net
Copyright @ 2018 ShenZehn Varmia Technology Co.,Ltd Te:0755-27659820 Fax:0755-27659830
Address: Building A, Dawan Culture Plaza, No. 4128 Dongcheng Ring Road, Mawei Street, Pingshan District, Shenzhen Mailbox:hmy-tech@163.com